Two-part, low-backlash spindle nut
#302 ✅ Patent 7,287,443 granted on 2007-10-30Motor vehicle comprising a drive train having a multiple clutch drive
#303 ✅ Patent 7,395,732 granted on 2008-07-08Shifter rod assemblies for automotive transmissions
#304 ✅ Patent 7,571,662 granted on 2009-08-11Selector mechanism for a motor vehicle transmission
#305Shaft assembly for use in steering systems
#306Motion transmitting remote control with conduit connection verification
#307 ✅ Patent 7,308,970 granted on 2007-12-18Externally serviceable transmission sump fill pipe and drain port assembly
#308 ✅ Patent 7,278,942 granted on 2007-10-09Transmission packaging and rotor support structure
#309 ✅ Patent 7,243,574 granted on 2007-07-17Rotating regulating device
#310 ✅ Patent 7,249,536 granted on 2007-07-31Wave gear device
#311Use of a hard metal alloy
#312 ✅ Patent 7,547,344 granted on 2009-06-16Nanosized intermetallic powders
#313 ✅ Patent 7,189,277 granted on 2007-03-13Stabilized iron-based powdered metal molding compositions
#314Monodispersable magnetic nanocolloids having an adjustable size and method for the production thereof
#315Method for treating slag
#316 ✅ Patent 7,727,304 granted on 2010-06-01Smelting process for the production of iron
#317 ✅ Patent 7,534,389 granted on 2009-05-19Apparatus and process for extracting arsenic in vacuum
#318Process for extraction of metals from ores or industrial materials
#319Hammer having vibration absorbing effect
#320 ✅ Patent 7,171,871 granted on 2007-02-06Damaged bolt and screw removing devices
#321Method for fabrication of electrophotographic cylinder cores
#322 ✅ Patent 7,228,771 granted on 2007-06-12Automatic screw machine with multi-axis drive control
#323 ✅ Patent 8,065,941 granted on 2011-11-29Tool compensating device for the computerized numerically controlled machine tool
#324 ✅ Patent 7,516,687 granted on 2009-04-14Live center sealing method and system
#325Circular saw with laser and protractor
#326Angled crosscut knife
#327Multi-blade adaptor
#328 ✅ Patent 7,594,462 granted on 2009-09-29Blade tension gauge
#329Paper cutting apparatus and method of producing same
#330Flying saw and flighted chain conveyor apparatus
#331Circular saw with blade guide
#332Rotary cutter, and anvil roll for rotary cutting apparatus
#333 ✅ Patent 7,069,831 granted on 2006-07-04Sawdust collection system for a circular saw
#334 ✅ Patent 7,044,038 granted on 2006-05-16Microtome
#335Pattern cutter
#336Circular saw blade
#337 ✅ Patent 7,825,323 granted on 2010-11-02Electrical music apparatus capable of connecting with external device
#338 ✅ Patent 7,345,231 granted on 2008-03-18Slide rule for music
#339 ✅ Patent 7,446,248 granted on 2008-11-04Apparatus and method for self-tuning stringed musical instruments with an accompanying vibrato mechanism
#340Mathematical fret placement system and method
#341 ✅ Patent 7,167,384 granted on 2007-01-23Switching power circuit
#342Mine removing system
#343Ballistic resistant plate and method for producing same
#344 ✅ Patent 7,377,066 granted on 2008-05-27Firearm with a readily interchangeable bolt face
#345 ✅ Patent 7,207,260 granted on 2007-04-24Reciprocating hydraulic machine, especially a motor, and dosing apparatus comprising such a motor
#346 ✅ Patent 7,210,394 granted on 2007-05-01Method and apparatus for controlling air cylinder
#347 ✅ Patent 7,401,541 granted on 2008-07-22Servo-pneumatic actuator
#348 ✅ Patent 7,121,186 granted on 2006-10-17Pneumatic servo unit, method for making same and device
#349 ✅ Patent 7,255,408 granted on 2007-08-14Vacuum booster
#350 ✅ Patent 7,441,406 granted on 2008-10-28Fluid circuit and industrial truck having a fluid circuit
#351 ✅ Patent 7,406,941 granted on 2008-08-05One piece cast steel monobloc piston
#352 ✅ Patent 8,313,546 granted on 2012-11-20Fluid flow filter
#353 ✅ Patent 7,434,793 granted on 2008-10-14Coating for a throttle body
#354 ✅ Patent 7,404,244 granted on 2008-07-29Converting twist-lock tube sheet filter orifices to snap-band orifices
#355 ✅ Patent 7,314,495 granted on 2008-01-01Process and device for eliminating the particles contained in a stream of fluid
#356Hydrogen purification devices, components and fuel processing systems containing the same
#357 ✅ Patent 7,393,391 granted on 2008-07-01Fabrication of an anisotropic super hydrophobic/hydrophilic nanoporous membranes
#358 ✅ Patent 7,402,198 granted on 2008-07-22Carbon dioxide adsorption-desorption material and adsorption-desorption apparatus
#359 ✅ Patent 7,410,535 granted on 2008-08-12Cyclone separating apparatus and a vacuum cleaner having the same
#360 ✅ Patent 7,278,349 granted on 2007-10-09Carafe with outlet in handle
#361Espresso machine and method of use thereof
#362 ✅ Patent 7,506,577 granted on 2009-03-24Machine for dispensing beverages from pods
#363 ✅ Patent 7,219,596 granted on 2007-05-22Coffee brewer with loading and ejection mechanism for a coffee cartridge
#364Container with sliding lid
#365 ✅ Patent 7,591,221 granted on 2009-09-22Salad shaker
#366 ✅ Patent 7,703,390 granted on 2010-04-27Roller grill separating device
#367 ✅ Patent 7,303,061 granted on 2007-12-04Multi-lane fruit guide assembly having integral ridge ends for a juice extractor and related methods
#368 ✅ Patent 7,421,945 granted on 2008-09-09Juice extractor including fruit feeder decoupling detector and associated methods
#369 ✅ Patent 7,779,756 granted on 2010-08-24Juice extractor including frictional shaft-hub couplings for drive cams and related methods
#370 ✅ Patent 7,305,918 granted on 2007-12-11Juice extractor with counterweight operatively engaged with camshaft
#371 ✅ Patent 7,305,919 granted on 2007-12-11Juice extractor with juice manifold having side outlet for juice
#372 ✅ Patent 7,305,920 granted on 2007-12-11Juice extractor with orifice tube beam drive extending into side panels
#373 ✅ Patent 7,143,691 granted on 2006-12-05Juice extractor with bottom loading strainer tube
#374 ✅ Patent 7,156,016 granted on 2007-01-02Juice extractor with integral juice manifold and cup bridge
#375 ✅ Patent 7,222,567 granted on 2007-05-29Juice extractor with tapered clean up nozzle
#376 ✅ Patent 7,503,449 granted on 2009-03-17Multi-lane fruit guide assembly for a juice extractor and related methods
#377 ✅ Patent 7,328,655 granted on 2008-02-12Juice extractor with drive and return cams for extractor cup movement
#378 ✅ Patent 7,337,715 granted on 2008-03-04Juice extractor including pressure-actuated nozzle and associated methods
#379 ✅ Patent 7,316,537 granted on 2008-01-08Substrate transport apparatus
#380Printing unit and inking unit
#381Image forming apparatus capable of effectively reducing color displacement
#382 ✅ Patent 7,204,652 granted on 2007-04-17Printed planar radio frequency identification elements
#383Roller press systems and methods
#384 ✅ Patent 7,568,426 granted on 2009-08-04Printing unit and inking unit
#385Lithographic printing memebers and a method and a system for preparation of lithographic printing members
#386Support for planographic printing plate and planographic printing plate material
#387 ✅ Patent 7,712,413 granted on 2010-05-11Printable cover systems for articles
#388 ✅ Patent 7,143,696 granted on 2006-12-05Remote digital firing system
#389Non-detonable explosive scent training tool
#390 ✅ Patent 7,472,654 granted on 2009-01-06Train for the deployment of sleepers and or railway track
#391Mobile track maintenance machine
#392Alkenylsuccinic anhydride compositions and method for using the same
#393Ink composition, inkjet ink and inkjet ink set
#394Chemically bonded ceramic material
#395 ✅ Patent 7,101,426 granted on 2006-09-05Inorganic matrix composite reinforced by ionically crosslinked polymer
#396High permittivity fluid
#397 ✅ Patent 7,947,126 granted on 2011-05-24Processes for preparing organic pigment dispersions and ink
#398Power-operated scissor lift table
#399 ✅ Patent 7,404,363 granted on 2008-07-29Security door and frame construction
#400 ✅ Patent 7,174,839 granted on 2007-02-13Seed planting system for multiple types of crops
#401Conversion arrangement for kayak
#402 ✅ Patent 7,337,739 granted on 2008-03-04Steering-force detection device for steering handle of vehicle
#403 ✅ Patent 7,343,869 granted on 2008-03-18Seat structure for small planing craft
#404 ✅ Patent 7,194,974 granted on 2007-03-27Steering device of personal watercraft
#405Dock post safety cap
#406 ✅ Patent 7,044,076 granted on 2006-05-16Pontoon for protection barrier system
#407Rotatable wakeboard support
#408Method and apparatus for intelligent highway traffic control devices
#409Single crystal and quasi-single crystal, composition, apparatus, and associated method
#410 ✅ Patent 7,811,380 granted on 2010-10-12Process for obtaining bulk mono-crystalline gallium-containing nitride
#411 ✅ Patent 7,306,673 granted on 2007-12-11Furnace purification and metal fluoride crystal grown in a purified furnace
#412 ✅ Patent 8,852,562 granted on 2014-10-07Artificial tanning solution and other fluid application apparatus, system and method
#413 ✅ Patent 7,608,797 granted on 2009-10-27High velocity thermal spray apparatus
#414System for treating, in particular, cataphoretically immersion painting objects, particularly vehicle bodies
#415 ✅ Patent 7,323,059 granted on 2008-01-29Plant for the treatment, in particular the cataphoretic dip coating of objects, in particular of vehicle chassis
#416Plasma resistant member, manufacturing method for the same and method of forming a thermal spray coat
#417Vacuum-processing chamber-shield and multi-chamber pumping method
#418Holding device for a screen
#419Vaporizer, various apparatuses including the same and method of vaporization
#420Delivery system
#421Milking device
#422 ✅ Patent 7,536,975 granted on 2009-05-26Plasma-assisted disinfection of milking machines
#423 ✅ Patent 7,383,788 granted on 2008-06-10Enhanced feeding and growth rates of aquatic animals fed an astaxanthin product derived from marigold extract
#424Package for storage and distribution of wild bird seed convertible to a disposable squirrel proof wild bird feeder
#425 ✅ Patent 7,011,041 granted on 2006-03-14Self cleaning birdbath
#426BIRD FEEDER
#427 ✅ Patent 7,219,623 granted on 2007-05-22Animal water dispensers and the like that resist fouling and method of maintaining same
#428 ✅ Patent 7,107,933 granted on 2006-09-19Litter-free pet waste collection system
#429Toilet for pet
#430Apparatus and method of harvesting shellfish
#431 ✅ Patent 7,341,021 granted on 2008-03-11Submersible farm
#432 ✅ Patent 7,117,819 granted on 2006-10-10Apparatus and method for rotating avian enclosures
#433 ✅ Patent 7,523,719 granted on 2009-04-28Pet safety enclosure method and apparatus
#434 ✅ Patent 7,201,116 granted on 2007-04-10Foldable/collapsible structure
#435 ✅ Patent 7,399,286 granted on 2008-07-15Massage devices and methods of using same
#436 ✅ Patent 7,222,588 granted on 2007-05-29Pet grooming tool and method for removing loose hair from a furry pet
#437Apparatus and methods for dispensing pet care substances
#438 ✅ Patent 7,717,068 granted on 2010-05-18Apparatus for enabling a trained dog to open a door
#439 ✅ Patent 7,377,234 granted on 2008-05-27Portable animal tracking system
#440 ✅ Patent 7,126,475 granted on 2006-10-24Electronic fence transmitter for self-adjusting the receiving distance
#441Animal boot
#442 ✅ Patent 7,281,363 granted on 2007-10-16Service dog harness
#443Internal combustion engine with auto ignition
#444 ✅ Patent 7,096,830 granted on 2006-08-29Mounting arrangement for electric water pump
#445Vehicle mounted filter assembly for entrapment of ambient air pollutants
#446 ✅ Patent 7,322,320 granted on 2008-01-29Engine cylinder block
#447 ✅ Patent 7,469,662 granted on 2008-12-30Homogeneous charge compression ignition engine with combustion phasing
#448 ✅ Patent 7,426,913 granted on 2008-09-23Intake valve control system and method for internal combustion engine
#449 ✅ Patent 7,036,471 granted on 2006-05-02Intake air control apparatus and method for internal combustion engine
#450Intake system for multi-cylinder engine
#451 ✅ Patent 7,021,259 granted on 2006-04-04Variable valve control apparatus and method in internal combustion engine
#452 ✅ Patent 7,420,662 granted on 2008-09-02Optical diagnostics integrated with laser spark delivery system
#453 ✅ Patent 7,216,618 granted on 2007-05-15Control apparatus for driving vehicle and control method for driving vehicle
#454Carburetor choke valve electronic control system
#455 ✅ Patent 7,131,415 granted on 2006-11-07Resin intake manifold for multicylinder engine
#456 ✅ Patent 7,506,627 granted on 2009-03-24Balancer shaft arrangement for engine
#457 ✅ Patent 7,086,367 granted on 2006-08-08Air flow arrangement for a reduced-emission single cylinder engine
#458 ✅ Patent 7,146,966 granted on 2006-12-12Cylinder cutoff control apparatus of internal combustion engine
#459 ✅ Patent 7,339,307 granted on 2008-03-04Sealing arrangement for a piezo actuator of a fuel injector
#460Rotary heat engine
#461 ✅ Patent 7,055,500 granted on 2006-06-06Ignition timing control apparatus for internal combustion engine
#462 ✅ Patent 7,165,533 granted on 2007-01-23Internal combustion engine
#463 ✅ Patent 7,055,501 granted on 2006-06-06Ignition timing control method and apparatus for internal combustion engine
#464 ✅ Patent 7,451,744 granted on 2008-11-18Forward mounting arrangement of a fuel injector in a vehicle
#465 ✅ Patent 7,237,534 granted on 2007-07-03Vehicle
#466 ✅ Patent 7,082,928 granted on 2006-08-01Method for adjusting the duration of fuel injection through an injection valve
#467 ✅ Patent 7,028,671 granted on 2006-04-18Fuel return systems
#468 ✅ Patent 7,334,559 granted on 2008-02-26Evaporative fuel supply apparatus
#469Heat pipe for heating of gasoline for on-board octane segregation
#470 ✅ Patent 7,040,303 granted on 2006-05-09Combined aftercooler system with shared fans
#471System and method for increasing the available oxygen in a combustion engine
#472 ✅ Patent 7,150,273 granted on 2006-12-19Exhaust manifold arrangement
#473 ✅ Patent 7,107,975 granted on 2006-09-19Controller of internal combustion engine
#474 ✅ Patent 7,213,587 granted on 2007-05-08Adjustable two-way valve device for a combustion engine
#475Reduced-emission single cylinder engine
#476 ✅ Patent 7,151,994 granted on 2006-12-19Calculation of air charge amount in internal combustion engine
#477 ✅ Patent 7,624,726 granted on 2009-12-01Valve for compressed gas gun
#478Overheat steam cooker
#479Self cleaning barbecue roasting hood
#480Transportable grill
#481 ✅ Patent 7,219,610 granted on 2007-05-22Grate plate arrangement for step plates
#482Steam generator
#483 ✅ Patent 7,565,904 granted on 2009-07-28Firelog burner
#484Fuel burning logset and hearth
#485Portable fire pit
#486Solar/electromagnetic energy collector, solar heating element, solar lamp
#487Integrated snorkel mask front-mounted snorkel
#488 ✅ Patent 7,063,085 granted on 2006-06-20Gas delivery and monitoring system
#489Apparatus and method for humidification of inspired gases
#490Apparatus and method for humidification of inspired gases
#491 ✅ Patent 7,296,567 granted on 2007-11-20Breath actuated aerosol dispensers
#492 ✅ Patent 8,051,851 granted on 2011-11-08Inhaler for the administration of powdered pharmaceuticals, and a powder cartridge system for use with this inhaler
#493 ✅ Patent 7,525,663 granted on 2009-04-28Method and apparatus for humidification of breathable gas by condensation and/or dehumidification
#494 ✅ Patent 7,722,546 granted on 2010-05-25Method and device for carrying out a signal-processing viewing of a measurement signal that is correlated to the respiratory activity of an individual
#495 ✅ Patent 7,708,697 granted on 2010-05-04Method and apparatus for determining conditions of biological tissues
#496 ✅ Patent 7,708,015 granted on 2010-05-04Process for the automatic recording of pressure-vs.-volume curves during artificial respiration
#497Airway implant devices and methods of use
#498 ✅ Patent 7,341,058 granted on 2008-03-11Neonatal valved manifold
#499 ✅ Patent 7,896,010 granted on 2011-03-01Filter cigarette inspection apparatus and inspection method
#500 ✅ Patent 7,337,782 granted on 2008-03-04Process to remove protein and other biomolecules from tobacco extract or slurry
#501Method of making a smoking composition
#502 ✅ Patent 7,377,281 granted on 2008-05-27Cone wrapper for the consumption of smokable substances
#503 ✅ Patent 7,798,153 granted on 2010-09-21smokeless tobacco
#504Makeup or care kit for nails
#505Hair straightening appliance with flocked arms
#506 ✅ Patent 7,150,282 granted on 2006-12-19Clothespin clip hair accessory
#507 ✅ Patent 7,264,677 granted on 2007-09-04Process for treating solid surface and substrate surface
#508Device and method addressing gas contamination in a wet process
#509Methods and systems for supplying deionized water in a wet station
#510Acoustic insulation blanket for dishwashers
#511Warewash machine and related door construction
#512Dish washing machine
#513 ✅ Patent 7,331,079 granted on 2008-02-19Liquid lubricated cleaning element for vehicle washing apparatus
#514Washing apparatus
#515 ✅ Patent 7,520,288 granted on 2009-04-21Cleaning machine
#516DEFLECTION RESISTANT TENT
#517 ✅ Patent 7,521,629 granted on 2009-04-21Thermoelectric transportation material containing nitrogen
#518 ✅ Patent 7,554,029 granted on 2009-06-30Complex oxide having p-type thermoelectric characteristics
#519Method of increasing the output power from photovoltaic cells
#520Solar cell device, method for manufacture thereof, and electronic device
#521Body part of a vehicle provided with a thin-film solar cell and the production thereof
#522 ✅ Patent 7,207,347 granted on 2007-04-24Dual function valve for fuel tank
#523 ✅ Patent 7,320,347 granted on 2008-01-22Inflation and deflation apparatus
#524Mass flow controller
#525Hydraulic power steering valve housing
#526 ✅ Patent 7,228,869 granted on 2007-06-12Pressure limiting valve
#527Check valve
#528 ✅ Patent 7,503,343 granted on 2009-03-17Siphonable check valve and method of making same
#529 ✅ Patent 7,182,097 granted on 2007-02-27Anti-saturation directional control valve composed of two or more sections with pressure selector compensators
#530 ✅ Patent 7,185,676 granted on 2007-03-06Valve structure for faucets
#531Valve for mixing cold and hot water
#532Reversing valve assembly with improved pilot valve mounting structure
#533 ✅ Patent 7,108,008 granted on 2006-09-19Reversing valve assembly with improved pilot valve mounting structure
#534 ✅ Patent 7,631,661 granted on 2009-12-15Straight flow reversing valve
#535Three-way valve with independent quarter-turn outlets
#536 ✅ Patent 7,299,824 granted on 2007-11-27Multiple-mode fluid valve
#537Method and apparatus for controlling minute amount of fluid
#538 ✅ Patent 7,325,571 granted on 2008-02-05Pressure container and pressure accumulating/buffer apparatus
#539Inflatable pipe test probe
#540Hydrogen conduit and process for producing same
#541 ✅ Patent 7,124,787 granted on 2006-10-24Pneumatic cable tie installation tool
#542 ✅ Patent 7,104,288 granted on 2006-09-12Inflator for vehicle protection apparatus
#543 ✅ Patent 7,686,042 granted on 2010-03-30Contents dispensing mechanism
#544 ✅ Patent 7,284,578 granted on 2007-10-23Apparatus for placing products into blisters of a blister band
#545 ✅ Patent 7,275,570 granted on 2007-10-02Desiccant dispensing system
#546 ✅ Patent 7,708,037 granted on 2010-05-04Tree pusher
#547 ✅ Patent 7,467,651 granted on 2008-12-23Tool attachment system and router attachment and method incorporating same
#548Carving tool device
#549Method for manufacturing stainless steel product by nitrogen absorption treatment and stainless steel product produced by the method
#550Process and plant for manufacturing fine iron and steel powders, fine iron and steel powders and use of powders manufactured by the process
#551Nano invar alloys and process for producing the same
#552High-purity titanium-nickel alloys with shape memory
#553Chromium-containing metal and manufacturing method thereof
#554Laminate for HDD Suspension With the use of Thin Copper Foil and Method for Manufacturing the same
#555Method for production and forming of cast pieces of spheroidal graphite with improved mechanical properties
#556 ✅ Patent 7,520,039 granted on 2009-04-21Method for the post-treatment of deformed high-grade steel blanks
#557High strength cold rolled steel sheet and method for manufacturing the same
#558Gas quenching installation and the corresponding quenching method
#559 ✅ Patent 7,384,489 granted on 2008-06-10Atmosphere control during continuous heat treatment of metal strips
#560Nickel alloy sputtering target
#561 ✅ Patent 7,308,922 granted on 2007-12-18Key locator
#562 ✅ Patent 7,610,944 granted on 2009-11-03Magnetic handle system for bags
#563Tire tread wear indicator and molding device for forming a tread wear indicator
#564 ✅ Patent 7,628,880 granted on 2009-12-08Method of mounting tires to civil engineering vehicles and associated tire
#565 ✅ Patent 7,083,238 granted on 2006-08-01Multi-piece aluminum wheel and associated method
#566 ✅ Patent 7,329,323 granted on 2008-02-12Methods and systems for selectively connecting and disconnecting conductors in a fabric
#567 ✅ Patent 7,393,425 granted on 2008-07-01Methods for cable sealing
#568 ✅ Patent 7,105,068 granted on 2006-09-12Method and apparatus for applying aligned tape patterns
#569Method and apparatus for applying ductile tape
#570 ✅ Patent 7,396,425 granted on 2008-07-08Method of production of peeling layer paste and method of production of multilayer type electronic device
#571 ✅ Patent 7,252,855 granted on 2007-08-07Method and apparatus for making an adhesive cleaning sheet
#572 ✅ Patent 7,291,359 granted on 2007-11-06Method and apparatus for making an adhesive cleaning sheet
#573 ✅ Patent 7,811,404 granted on 2010-10-12Applying adhesive labels to products and product containers
#574 ✅ Patent 7,516,768 granted on 2009-04-14Method and apparatus for joining protective tape
#575Method for producing plastic tanks for liquids
#576Polyterafluoroethylene laminated article
#577Delabeling method, device for carrying out the same and use thereof
#578 ✅ Patent 7,582,180 granted on 2009-09-01Systems and methods for processing microfeature workpieces
#579 ✅ Patent 8,845,852 granted on 2014-09-30Polishing pad and method of producing semiconductor device
#580Method and apparatus for removing material from a substrate surface
#581 ✅ Patent 7,740,737 granted on 2010-06-22Plasma processing apparatus and method
#582Plasma processing apparatus
#583 ✅ Patent 7,951,262 granted on 2011-05-31Plasma processing apparatus and method
#584Plasma Processing apparatus and method
#585 ✅ Patent 7,361,016 granted on 2008-04-22Temperature control assembly for use in etching processes and an associated retrofit method
#586Beverage bottle labeling apparatus configured to label beverage bottles in a beverage bottling plant
#587Apparatus and method for fabricating bonded substrate
#588 ✅ Patent 7,402,221 granted on 2008-07-22Method for pressure bonding of a breaker-tread assembly with a carcass assembly by means of stitching in the manufacture of green tyres and device for accomplishment of such method
#589Label attaching apparatus which attaches a label to external peripheral surface of a test tube
#590 ✅ Patent 7,347,244 granted on 2008-03-25Membrane applicator
#591Gluing device in a bottom laying device
#592 ✅ Patent 7,264,032 granted on 2007-09-04Improper working position detection for tire mounting apparatus and method
#593 ✅ Patent 7,597,130 granted on 2009-10-06Door unit
#594Door cover
#595Dual use combination overhead garage door tracks
#596Roller screen for retractable doors
#597Shutter with slat guides
#598 ✅ Patent 7,275,581 granted on 2007-10-02Device with shutter winding about a drum
#599Stackable folding screen
#600Brake mechanism for curtain linkage system