Patents-Review.com
ClassID:

135185 ⎘

E21B7/15 - CPC Classification

Classification description:

Special methods or apparatus for drilling; Drilling by use of heat, e.g. flame drilling of electrically generated heat

Recent Application in this class:
#1
20260139549
2026-05-21

MILLIMETER WAVE DRILL PIPE SYSTEM

 #2
20260133098
2026-05-14

SIMULATING AND TESTING PLATFORM SYSTEM AND METHOD FOR LASER-MECHANICAL COMBINED EFFICIENT DRILLING AND ROCK BREAKING

 #3
20260063555
2026-03-05

CONTINUOUS EMISSIONS MONITOR FOR DIRECTED-ENERGY BOREHOLE DRILLING

 #4
20260063002
2026-03-05

COOLING OF ELECTROCRUSHING DRILL ASSEMBLY

 #5
20260055665
2026-02-26

PILOTING PULSED POWER DRILLING USING A MULTI-ACTUATOR BASED FLOATING ELECTRODE

 #6
20260036020
2026-02-05

CRYOGENIC COOLANT FLOW MANAGEMENT FOR DOWNHOLE SUPERCONDUCTING CABLE

 #7
20260002416
2026-01-01

HIGH TEMPERATURE SUPERCONDUCTING CABLE BASED POWER DELIVERY SYSTEM IN PULSED POWER DRILLING

 #8
20250376898
2025-12-11

INSULATED COILED TUBING FOR PULSED POWER DRILLING

 #9
20250376895
2025-12-11

SYSTEM AND METHODS FOR IN-SITU PERMEABILITY MEASUREMENTS

 #10
20250321258
2025-10-16

SURFACE WAVEGUIDE

 #11
20250257613
2025-08-14

DOWNHOLE LASER BORING AND PERFORATING TOOL AND METHOD OF USING SAME

 #12
20250240001
2025-07-24

PULSE GENERATING SYSTEMS, PULSE GENERATING CIRCUITS, AND METHODS TO IMPROVE PERFORMANCE OF A PULSED POWER DRILLING SYSTEM

 #13
20250237110
2025-07-24

PULSED QUALITY DISCRIMINATOR SYSTEMS AND METHODS TO IMPROVE PERFORMANCE OF A PULSED POWER DRILLING SYSTEM

 #14
20250219622
2025-07-03

HIGH VOLTAGE AND HIGH CURRENT SUPER SWITCH

 #15
20250198239
2025-06-19

COMBINED DRILL BIT BASED ON ELECTRO-PULSE-DRILLING TECHNOLOGY

 #16
20250084706
2025-03-13

Pulsed-Power Drilling System with Integrated Power and Communication Coiled Tubing Conveyance

 #17
20250075569
2025-03-06

INSULATED COILED TUBING FOR PULSED POWER DRILLING

 #18
20250067171
2025-02-27

RATE OF PENETRATION/DEPTH MONITOR FOR A BOREHOLE FORMED WITH MILLIMETER-WAVE BEAM

 #19
20250060314
2025-02-20

CONTINUOUS EMISSIONS MONITOR FOR DIRECTED-ENERGY BOREHOLE DRILLING

 #20
20250034946
2025-01-30

POWER DELIVERY SYSTEM FOR PULSED POWER DRILLING

 #21
20250027371
2025-01-23

HYBRID MILLING HIGH POWER LASER TOOL

 #22
20240410229
2024-12-12

Pulsed high-power drill bit and drilling tool

 #23
20240376810
2024-11-14

Microwave drill bit capable of achieving fracturing of borehole wall and end of deep hard rock while drilling and use method thereof

 #24
20240344402
2024-10-17

Pulsed power drilling tool and a method for breaking a mineral substrate

 #25
20240337159
2024-10-10

CONNECTOR ARRANGEMENT, DRILLING ARRANGEMENT AND METHOD FOR HIGH VOLTAGE ELECTRO PULSE DRILLING

 #26
20240309705
2024-09-19

DOWNHOLE HIGH-POWER LASER TOOL FOR SUBSURFACE APPLICATIONS

 #27
20240295148
2024-09-05

APPARATUS, DRILLING ARRANGEMENT AND METHOD FOR HIGH VOLTAGE ELECTRO PULSE DRILLING

 #28
20240263523
2024-08-08

HIGH POWER LASER PERFORATING AND LASER FRACTURING TOOLS AND METHODS OF USE

 #29
20240183226
2024-06-06

Multi-piece corrugated waveguide

 #30
20230407724
2023-12-21

Wellbore drilling and completion systems using laser head

 #31
20230407707
2023-12-21

Wellbore drilling and completion systems using laser head

 #32
20230332470
2023-10-19

Drill bit for downhole electrocrushing drilling

 #33
20230321749
2023-10-12

HIGH POWER LASER TUNNELING MINING AND CONSTRUCTION EQUIPMENT AND METHODS OF USE

 #34
20230287742
2023-09-14

Method and device for laser drilling

 #35
20230201971
2023-06-29

Laser switching apparatus and method

 #36
20230193696
2023-06-22

HYBRID DRILLING AND TRIMMING TOOL AND METHODS

 #37
20230167687
2023-06-01

Binder jetting system and method for producing electromagnetic pulsed power drilling components

 #38
20230160262
2023-05-25

Multi-piece corrugated waveguide

 #39
20230151707
2023-05-18

Laser milling and removal tool and methods

 #40
20230145343
2023-05-11

Fluid based intermittent powering of downhole operations

 #41
20230144439
2023-05-11

DIRECTIONAL PULSE POWER DRILLING

 #42
20230144083
2023-05-11

Selective electrode usage for directional pulse power drilling

 #43
20230143504
2023-05-11

Selective electrode usage for directional pulse power drilling from a single power source

 #44
20230137629
2023-05-04

Pulse power drilling assembly transformer with a core having a non-conductive material

 #45
20230132937
2023-05-04

Pulse power drilling assembly transformer with a core having insulative and electrically conductive materials

 #46
20230124575
2023-04-20

DRILL BIT FOR DOWNHOLE ELECTROCRUSHING DRILLING

 #47
20230083407
2023-03-16

SYSTEM AND METHOD FOR FRITTERING ROCK INSIDE A CELLAR USING HIGH ENERGY ELECTROMAGNETIC BEAMS

 #48
20230073890
2023-03-09

Direct High Voltage Water Heater System

 #49
20230008455
2023-01-12

MULTI-PIECE CORRUGATED WAVEGUIDE

 #50
20220389763
2022-12-08

Methods and systems for adaptive non-contact / contact boring

 #51
20220372822
2022-11-24

System and method for laser downhole extended sensing

 #52
20220307323
2022-09-29

Formation evaluation based on pulse power electrode discharge measurements

 #53
20220282575
2022-09-08

Pulsed-power drilling fluid property management using downhole mixer

 #54
20220195866
2022-06-23

Communications using electrical pulse power discharges during pulse power drilling operations

 #55
20220195807
2022-06-23

Pulse power drilling control

 #56
20220195806
2022-06-23

Power conditioning system for pulse power drilling

 #57
20220186564
2022-06-16

Voltage line communications during pulse power drilling

 #58
20220112772
2022-04-14

High power laser-enablers for heating/fracturing stimulation tool and methods therefor

 #59
20220065769
2022-03-03

Determining formation porosity and permeability

 #60
20220065106
2022-03-03

Plasma optimization with formational and fluid information

 #61
20220065105
2022-03-03

Estimating formation isotopic concentration with pulsed power drilling

 #62
20220065103
2022-03-03

Plasma chemistry derived formation rock evaluation for pulse power drilling

 #63
20220065102
2022-03-03

Plasma chemistry based analysis and operations for pulse power drilling

 #64
20220065044
2022-03-03

Plasma chemistry derived relation between arc and spark for pulse power drilling

 #65
20220010626
2022-01-13

MINING METHOD

 #66
20210404280
2021-12-30

Laser cutting tool

 #67
20210404261
2021-12-30

Tunneling for underground power and pipelines

 #68
20210396079
2021-12-23

Systems and methods for forming a subterranean borehole

 #69
20210381316
2021-12-09

Laser tool configured for downhole movement

 #70
20210381315
2021-12-09

METHOD AND APPARATUS FOR CONCENTRATED ENERGY DRILLING, CORE DRILLING, AUTOMATED MINING AND TUNNELING

 #71
20210372252
2021-12-02

Laser tool with color applicator

 #72
20210364716
2021-11-25

Methods to harvest electromagnetic energy during subsurface high power laser transmission

 #73
20210340821
2021-11-04

Laser array drilling tool and related methods

 #74
20210324683
2021-10-21

Downhole reconfiguration of pulsed-power drilling system components during pulsed drilling operations

 #75
20210310311
2021-10-07

Pulsed-power drill bit ground ring with abrasive material

 #76
20210310310
2021-10-07

Pulsed-power drill bit ground ring with two portions

 #77
20210310309
2021-10-07

Pulsed-power drill bit ground ring with variable outer diameter

 #78
20210293127
2021-09-23

Determining formation characteristics using reference sensor responses recorded during pulsed drilling

 #79
20210286227
2021-09-16

Reconfigurable optics for beam transformation

 #80
20210262306
2021-08-26

Expended laser tool

 #81
20210199005
2021-07-01

System and method for determining formation characteristics using electrical arc modeling

 #82
20210180407
2021-06-17

High-power capacitor for downhole electrocrushing drilling

 #83
20210164332
2021-06-03

Systems and methods for dielectric mapping during pulsed-power drilling

 #84
20210164294
2021-06-03

High power laser completion drilling tool and methods for upstream subsurface applications

 #85
20210079730
2021-03-18

Drill bit for downhole electrocrushing drilling

 #86
20210071489
2021-03-11

Managing dielectric properties of pulsed power drilling fluids

 #87
20210071478
2021-03-11

Melting head for ice-melting apparatus

 #88
20210025240
2021-01-28

Switches for downhole electrocrushing drilling

 #89
20210010369
2021-01-14

Electrical impulse earth-boring tools and related systems and methods

 #90
20200408042
2020-12-31

High power laser perforating and laser fracturing tools and methods of use

 #91
20200392818
2020-12-17

Laser array drilling tool and related methods

 #92
20200392794
2020-12-17

High-power laser drilling system

 #93
20200392793
2020-12-17

Laser drilling tool with articulated arm and reservoir characterization and mapping capabilities

 #94
20200370375
2020-11-26

Downhole reconfiguration of pulsed-power drilling system components during pulsed drilling operations

 #95
20200299562
2020-09-24

Drilling fluid for downhole electrocrushing drilling

 #96
20200270976
2020-08-27

Using electromagnetic waves to remove near wellbore damages in a hydrocarbon reservoir

 #97
20200240267
2020-07-30

Systems and methods for radiant gas dynamic mining of permafrost for propellant extraction

 #98
20200224498
2020-07-16

Multi-path combined high-low voltage plasma drilling method, drill bit for drilling and drill bit apparatus for drilling

 #99
20200217199
2020-07-09

Tunneling for underground power and pipelines

 #100
20200217143
2020-07-09

Multi-path combined high-low voltage plasma rock-breaking drill bit, drill bit apparatus and drilling method

 #101
20200217140
2020-07-09

Multi-path combined high-low voltage plasma drilling power source and drillling system

 #102
20200190966
2020-06-18

Magnetic ranging systems and methods using random electric spark excitation

 #103
20200190761
2020-06-18

In-situ piling and anchor shaping using plasma blasting

 #104
20200173236
2020-06-04

Drilling system

 #105
20200165506
2020-05-28

Drilling fluid for downhole electrocrushing drilling

 #106
20200131854
2020-04-30

Laser tool configured for downhole movement

 #107
20200115962
2020-04-16

High power laser completion drilling tool and methods for upstream subsurface applications

 #108
20200087561
2020-03-19

Drilling fluid for downhole electrocrushing drilling

 #109
20200048967
2020-02-13

Laser tool that combines purging medium and laser beam

 #110
20200048966
2020-02-13

Laser tool configured for downhole beam generation

 #111
20200024502
2020-01-23

Drilling fluid for downhole electrocrushing drilling

 #112
20190316419
2019-10-17

SYSTEM FOR ROTARY DRILLING BY ELECTRICAL DISCHARGE

 #113
20190309576
2019-10-10

Visible Diode Laser Systems, Apparatus and Methods of Use

 #114
20190292890
2019-09-26

Using electromagnetic waves to remove near wellbore damages in a hydrocarbon reservoir

 #115
20190257156
2019-08-22

In-situ laser generator cooling system for downhole application and stimulations

 #116
20190240770
2019-08-08

High power laser tunneling mining and construction equipment and methods of use

 #117
20190178036
2019-06-13

DOWNHOLE LASER SYSTEMS, APPARATUS AND METHODS OF USE

 #118
20190177944
2019-06-13

In-situ piling and anchor shaping using plasma blasting

 #119
20190085688
2019-03-21

Tunneling for underground power and pipelines

 #120
20190055789
2019-02-21

Energy-emitting bits and cutting elements

 #121
20190040741
2019-02-07

Cutter head for microwave presplitting type hard-rock tunnel boring machine

 #122
20190040686
2019-02-07

Drill with remotely controlled operating modes and system and method for providing the same

 #123
20190040685
2019-02-07

Drill bit for downhole electrocrushing drilling

 #124
20190032434
2019-01-31

Downhole high power laser scanner tool and methods

 #125
20190017380
2019-01-17

Laser-assisted tunnel boring machine and rock fragmenting method therefor

 #126
20190010761
2019-01-10

GENERATING ELECTRIC ARC, WHICH DIRECTLY AREALLY THERMALLY AND MECHANICALLY ACTS ON MATERIAL, AND DEVICE FOR GENERATING ELECTRIC ARC

 #127
20180347282
2018-12-06

SWITCHES FOR DOWNHOLE ELECTROCRUSHING DRILLING

 #128
20180328150
2018-11-15

OILFIELD LASER OPERATIONS USING HIGH POWER LONG DISTANCE LASER TRANSMISSION SYSTEMS

 #129
20180313158
2018-11-01

Pulse transformer for downhole electrocrushing drilling

 #130
20180266182
2018-09-20

Drilling a rock formation with a drill bit assembly-with electrodes

 #131
20180209218
2018-07-26

Advanced drilling systems and methods

 #132
20180209217
2018-07-26

High-power fuse-protected capacitor for downhole electrocrushing drilling

 #133
20180209216
2018-07-26

Resonant transformer for downhole electrocrushing drilling

 #134
20180202273
2018-07-19

System and methods for controlled fracturing in formations

 #135
20180201823
2018-07-19

Drilling fluid for downhole electrocrushing drilling

 #136
20180201822
2018-07-19

Drilling fluid for downhole electrocrushing drilling

 #137
20180194987
2018-07-12

Drilling fluid for downhole electrocrushing drilling

 #138
20180194986
2018-07-12

Drilling fluid for downhole electrocrushing drilling

 #139
20180163478
2018-06-14

High-voltage drilling methods and systems using hybrid drillstring conveyance

 #140
20180163477
2018-06-14

Visible diode laser systems, apparatus and methods of use

 #141
20180148981
2018-05-31

Repetitive pulsed electric discharge drills including downhole formation evaluation

 #142
20180142535
2018-05-24

Electrical conveyance for downhole tools

 #143
20180087804
2018-03-29

Direct high voltage water heater

 #144
20180066489
2018-03-08

Wellbore plug and abandonment

 #145
20170370155
2017-12-28

Device and method for crushing rock by means of pulsed electric energy

 #146
20170370154
2017-12-28

Direct laser ice penetration system

 #147
20170362897
2017-12-21

Advanced drilling systems and methods

 #148
20170362490
2017-12-21

Drilling fluid for downhole electrocrushing drilling

 #149
20170350206
2017-12-07

Method of removing materials by their disintegration by action of electric plasma

 #150
20170321486
2017-11-09

High power laser perforating and laser fracturing tools and methods of use

 #151
20170306703
2017-10-26

Hybrid mechanical-laser drilling equipment

 #152
20170214213
2017-07-27

HIGH POWER LASERS, WAVELENGTH CONVERSIONS, AND MATCHING WAVELENGTHS FOR USE ENVIRONMENTS

 #153
20170211328
2017-07-27

Autonomous laser-powered vehicle

 #154
20170204669
2017-07-20

Electrical pulse drill bit having spiral electrodes

 #155
20170204668
2017-07-20

ELECTRIC PULSE DRILLING APPARATUS WITH HOLE CLEANING PASSAGES

 #156
20170183913
2017-06-29

HIGH POWER LASER PERFORATING AND LASER FRACTURING TOOLS AND METHODS OF USE

 #157
20170152744
2017-06-01

Method of mining using a laser

 #158
20170138129
2017-05-18

METHOD FOR INTRODUCING A BOREHOLE

 #159
20170067292
2017-03-09

System for rotary drilling by electrical discharge

 #160
20170058608
2017-03-02

Rock formation drill bit assembly with electrodes

 #161
20160348439
2016-12-01

Drill with remotely controlled operating modes and system and method for providing the same

 #162
20160326806
2016-11-10

A METHOD FOR ENERGY EFFICIENT AND FAST ROTARY DRILLING IN INHOMOGENEOUS AND/OR HARD ROCK FORMATIONS

 #163
20160318633
2016-11-03

Mobile base anchoring device (MOBAD)

 #164
20160299304
2016-10-13

Optical fiber cable for transmission of high power laser energy over great distances

 #165
20160273325
2016-09-22

Laser cutting with convex deflector

 #166
20160222763
2016-08-04

Systems and conveyance structures for high power long distance laser transmission

 #167
20160221125
2016-08-04

Long stand off distance high power laser tools and methods of use

 #168
20160186497
2016-06-30

Electric motor for laser-mechanical drilling

 #169
20160090790
2016-03-31

High power laser energy distribution patterns, apparatus and methods for creating wells

 #170
20160084008
2016-03-24

Downhole laser systems, apparatus and methods of use

 #171
20160060961
2016-03-03

HIGH-VOLTAGE DRILLING METHODS AND SYSTEMS USING HYBRID DRILLSTRING CONVEYANCE

 #172
20160024849
2016-01-28

Generating electric arc, which directly areally thermally and mechanically acts on material, and device for generating electric arc

 #173
20160017663
2016-01-21

Repetitive pulsed electric discharge apparatuses and methods of use

 #174
20160017661
2016-01-21

Apparatus for performing oil field laser operations

 #175
20160010450
2016-01-14

Pulsed-electric drilling systems and methods with formation evaluation and/or bit position tracking

 #176
20150345225
2015-12-03

Multimodal rock disintegration by thermal effect and system for performing the method

 #177
20150322738
2015-11-12

Methods and apparatus for removal and control of material in laser drilling of a borehole

 #178
20150322326
2015-11-12

PULSE POWER DRILLING FLUID AND METHODS OF USE

 #179
20150308235
2015-10-29

APPARATUS AND METHOD FOR SUPPLYING ELECTRICAL POWER TO AN ELECTROCRUSHING DRILL

 #180
20150308194
2015-10-29

METHOD AND SYSTEM FOR ADVANCEMENT OF A BOREHOLE USING A HIGH POWER LASER

 #181
20150240564
2015-08-27

Drill with remotely controlled operating modes and system and method for providing the same

 #182
20150176333
2015-06-25

Advanced drilling systems and methods

 #183
20150167440
2015-06-18

System and methods for controlled fracturing in formations

 #184
20150167439
2015-06-18

System and methods for controlled fracturing in formations

 #185
20150083491
2015-03-26

Method and apparatus for isolating and switching lower voltage pulses from high voltage pulses in electrocrushing and electrohydraulic drills

 #186
20150068804
2015-03-12

Downhole tool for increasing a wellbore diameter

 #187
20150042145
2015-02-12

Method and apparatus for introducing or sinking cavities in rock

 #188
20140367502
2014-12-18

Virtual electrode mineral particle disintegrator

 #189
20140360778
2014-12-11

Downhole deep tunneling tool and method using high power laser beam

 #190
20140346157
2014-11-27

METHOD TO CONTROL THE ENVIRONMENT IN A LASER PATH

 #191
20140305635
2014-10-16

Method for developing oil and gas fields using high-power laser radiation for more complete oil and gas extraction

 #192
20140231398
2014-08-21

High power laser tunneling mining and construction equipment and methods of use

 #193
20140158425
2014-06-12

APPARATUS AND SYSTEM TO REMOVE DEBRIS FROM A LASER-EXTENDED BORE SECTION

 #194
20140060930
2014-03-06

High power laser downhole cutting tools and systems

 #195
20140060802
2014-03-06

High power laser workover and completion tools and systems

 #196
20140054087
2014-02-27

Drill with remotely controlled operating modes and system and method for providing the same

 #197
20140027178
2014-01-30

System and method for drilling a borehole

 #198
20140008968
2014-01-09

APPARATUSES AND METHODS FOR SUPPLYING ELECTRICAL POWER TO AN ELECTROCRUSHING DRILL

 #199
20130228557
2013-09-05

Total internal reflection laser tools and methods

 #200
20130228372
2013-09-05

High power laser perforating and laser fracturing tools and methods of use

 #201
20130192894
2013-08-01

Methods for enhancing the efficiency of creating a borehole using high power laser systems

 #202
20130192893
2013-08-01

High power laser perforating tools and systems

 #203
20130175090
2013-07-11

Method and apparatus for delivering high power laser energy over long distances

 #204
20130140086
2013-06-06

Apparatus and method for supplying electrical power to an electrocrushing drill

 #205
20130112482
2013-05-09

Apparatus and Process For Drilling A Borehole In A Subterranean Formation

 #206
20130081874
2013-04-04

Electro-hydraulic drilling with shock wave reflection

 #207
20130032406
2013-02-07

Systems and methods for drilling boreholes with noncircular or variable cross-sections

 #208
20130032404
2013-02-07

Pulsed-electric drilling systems and methods with formation evaluation and/or bit position tracking

 #209
20130032400
2013-02-07

Cooled-fluid systems and methods for pulsed-electric drilling

 #210
20130032399
2013-02-07

Systems and Methods for Directional Pulsed-Electric Drilling

 #211
20130032397
2013-02-07

Systems and methods for pulsed-flow pulsed-electric drilling

 #212
20120267168
2012-10-25

Electric motor for laser-mechanical drilling

 #213
20120248078
2012-10-04

Control system for high power laser drilling workover and completion unit

 #214
20120234546
2012-09-20

System and method for fracturing a formation and a method of increasing depth of fracturing of a formation

 #215
20120217064
2012-08-30

Pulsed electric rock drilling apparatus with non-rotating bit and directional control

 #216
20120168177
2012-07-05

Apparatus and method for supplying electrical power to an electrocrushing drill

 #217
20120132466
2012-05-31

Pressure pulse fracturing system

 #218
20120103693
2012-05-03

System and method for drilling a borehole

 #219
20120068086
2012-03-22

Systems and conveyance structures for high power long distance laser transmission

 #220
20110290563
2011-12-01

Device for performing deep drillings and method of performing deep drillings

 #221
20110278382
2011-11-17

Virtual electrode mineral particle disintegrator

 #222
20110220409
2011-09-15

METHOD AND DEVICE FOR FUSION DRILLING

 #223
20100252324
2010-10-07

Millimeter-wave drilling system

 #224
20100215326
2010-08-26

Optical fiber cable for transmission of high power laser energy over great distances

 #225
20100212962
2010-08-26

Assembly for drilling and logging, method for drilling and logging and device for electro pulse drilling

 #226
20100078414
2010-04-01

LASER ASSISTED DRILLING

 #227
20100044106
2010-02-25

Method and apparatus for delivering high power laser energy over long distances

 #228
20100044105
2010-02-25

Methods and apparatus for delivering high power laser energy to a surface

 #229
20100044104
2010-02-25

Apparatus for advancing a wellbore using high power laser energy

 #230
20100044103
2010-02-25

Method and system for advancement of a borehole using a high power laser

 #231
20100044102
2010-02-25

Methods and apparatus for removal and control of material in laser drilling of a borehole

 #232
20100031653
2010-02-11

Method and device for the utilization of supercritical subsurface steam in combination with supercritical thermal and hydraulic power stations

 #233
20100000790
2010-01-07

Apparatus and method for electrocrushing rock

 #234
20090321132
2009-12-31

Electromagnetic energy assisted drilling system and method

 #235
20090133929
2009-05-28

Method, drilling machine, drill bit and bottom hole assembly for drilling by electrical discharge by electrical discharge pulses

 #236
20090133871
2009-05-28

Drilling, perforating and formation analysis

 #237
20090050371
2009-02-26

Pulsed electric rock drilling apparatus with non-rotating bit

 #238
20080277508
2008-11-13

Virtual electrode mineral particle disintegrator

 #239
20080245568
2008-10-09

System and method for drilling a borehole

 #240
20070152494
2007-07-05

Fracturing Using a Pressure Pulse

 #241
20070137893
2007-06-21

Method of drilling using pulsed electric drilling

 #242
20070127896
2007-06-07

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