SURFACE CONTROL BENT SUB FOR DIRECTIONAL DRILLING OF PETROLEUM WELLS,申请号GB19830006624-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	SURFACE CONTROL BENT SUB FOR DIRECTIONAL DRILLING OF PETROLEUM WELLS
摘要
申请公布号	GB2121455(A)	申请公布日期	1983.12.21
申请号	GB19830006624	申请日期	1983.03.10
申请人	DR LARRY R * RUSSELL	发明人	DR LARRY R * RUSSELL
分类号	E21B7/06;E21B7/08;E21B23/00;(IPC1-7):E21B7/08	主分类号	E21B7/06
代理机构		代理人
主权项
地址

您可能感兴趣的专利

TRANSVERSAL BARKING METHOD FOR GREEN VENEER

POWER SOURCE MALFUNCTION DETECTING CIRCUIT

METHOD OF WATERTIGHTLY TREATING SUBMARINE CABLE AMPHIBIOUS BOUNDARY

COMPOSITE HIGH VOLTAGE DEVICE

SOLID STATE COMPOSITE ELECTRONIC PART

MALFUNCTION DETECTOR FOR GAS INSULATED OPENING AND CLOSING DEVICE

SIMULTANEOUS INTERRUPTER INSERTION PREVENTING DEVICE FOR ENCLOSED SWITCHBOARD

PRINTED BOARD CONTAINER

DEVICE FOR PREVENTING FALLING OF HYDRAULIC ELEVATOR

CONVEYOR DEVICE FOR PASSENGER

HOT-WATER SUPPLYING MACHINE

HOT-WATER SUPPLYING MACHINE

HEAT-SENSITIVE RECORDING SYSTEM

INTERNAL-COMBUSTION ENGINE WITH PERMANENT RECIPROCATION OF FUEL INJECTION

THERMOSTAT APPARATUS

OPTICAL DISPLACEMENT GAGE CAPABLE OF TWO-AXES LIGHT SERVO WITH ONE DETECTING PART

PHASE MEASURING APPARATUS

COOLER UTILIZING ICE

FLUIDIZED BED BOILER