Top-sub assembly of a downhole hammer,申请号AU1997PP00619-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	Top-sub assembly of a downhole hammer
摘要
申请公布号	AUPP061997(D0)	申请公布日期	1998.01.08
申请号	AU1997PP00619	申请日期	1997.11.28
申请人	REAR, I. G.	发明人
分类号	E21B4/14	主分类号	E21B4/14
代理机构		代理人
主权项
地址

您可能感兴趣的专利

DEVICE FOR PULSE-PHASE CONTROL OF THYRISTOR CONVERTER

ALTERNATING-TO-DIRECT CURRENT VOLTAGE CONVERTER

LINEAR ASYNCHRONOUS MOTOR

DEVICE FOR SUPPLYING POWER TO MOBILE LOAD FROM STATIONARY POWER SOURCE

GRID-TYPE FILAMENTARY CATHODE FOR VACUUM TUBES AND ITS MANUFACTURE METHOD

HIGH-VOLTAGE SWITCHING DEVICE

ELECTROMAGNETIC SWITCHING DEVICE

DEVICE FOR APPLYING COAT TO ROUND FLAT ARTICLES

WORKING FLUID FOR ELECTRIC KINETIC CONVERTER OF MECHANICAL QUANTITIES

DEVICE FOR MEASURING MAGNETIC MEDIUM SPEED

DISPLACEMENT-TO-CODE CONVERTER

DISPLACEMENT-TO-CODE CONVERTER

FOILED DIELECTRIC

ANALOG-TO-DIGITAL CONVERTER

DEVICE FOR PROTECTING THREE-PHASE LOAD FROM CHANGING PHASE SEQUENCE AND BREAKING MAINS PHASE

DIFFERENTIATING DEVICE

AC VOLTAGE STABILIZER

METHOD AND DEVICE FOR IMITATING ELECTRONIC MECHANICAL TIME PIECE BALANCE MOVEMENT

PHASE SHIFT MEASURING METHOD