71948 ⎘
Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft; Hub construction; Blade mountings for non-adjustable blades
Sub-classes:PROPULSOR ASSEMBLY WITH TEETER MECHANISM
#2UNDUCTED TURBINE ENGINE COMPRISING STATOR BLADES HAVING DIFFERENT CHORDS
#3Propeller attaching device and propeller attaching method
#4Ultra-quiet propeller system
#5Tetracyclic heterocycle compounds useful as HIV integrase inhibitors
#6LOW-DRAG ROTOR BLADE EXTENSION
#7Unmanned aerial vehicle drag augmentation by reverse propeller rotation
#8Quick release rotor attachment systems and methods
#9Locking mechanism for unmanned aerial vehicle
#10Propeller
#11Unmanned aerial vehicle drag augmentation by reverse propeller rotation
#12Propeller assembly and propeller blade retention assembly
#13Unmanned aerial vehicle drag augmentation by reverse propeller rotation
#14Catcher ring arrangement
#15Unmanned aerial vehicle drag augmentation by reverse propeller rotation
#16Open rotor with fixed guide vane/stator
#17Propeller blade configuration
#18Ultra-quiet propeller system