Rotary drag bit with pdc gauge bearing pads,申请号EP19960301961-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	Rotary drag bit with pdc gauge bearing pads
摘要
申请公布号	EP0733776(A3)	申请公布日期	1997.12.10
申请号	EP19960301961	申请日期	1996.03.21
申请人	CAMCO DRILLING GROUP LIMITED	发明人	MATTHIAS, TERRY R.;HAYWARD, JOHN;LAMB, HAYDN RICHARD
分类号	E21B10/56;E21B10/567;E21B17/10;(IPC1-7):E21B10/56	主分类号	E21B10/56
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Mixer valve having a ball valve element housed in a cartridge

Container fluid removal and recovery system

Desk especially adapted for use in a vehicle

Wheel head and rail assembly

Method for weaving a filter fabric belt for pressure filter apparatus

In-line optical pickup using Wollaston Prism and collimating lens directing polarized light components to detectors

Method and apparatus for reducing coupling switching noise in interconnect array matrix

Penetration hardness tester

Apparatus for reducing the intensity and frequency of arcs which occur during a sputtering process

Satellite-based geolocation calibration system and method

Oligopeptide antiretroviral agents

Orientable, heat setable semi-crystalline copolyesters

N alpha -2-(4-Nitrophenylsulfonyl) ethoxycarbonyl-amino acids

Air treatment system

Apparatus for production of weave-knit material

Detection and isolation of nucleic acid sequences using competitive hybridization probes

Vertebral auxiliary fixation device

Floor-surface polisher equipped with function for adjusting pad pressure