High-pressure well packer,申请号US19500137056-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	High-pressure well packer
摘要
申请公布号	US2675876(A)	申请公布日期	1954.04.20
申请号	US19500137056	申请日期	1950.01.06
申请人	BAKER OIL TOOLS, INC.	发明人	CONRAD MARTIN B.;JR. EARNEST H. CLARK,
分类号	E21B33/129	主分类号	E21B33/129
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Device for alphanumeric arabic display for printing

Display unit of fuel consumption meter for automobile

Broadband signal termination apparatus comprising series cascade of resistors and transmission lines

Process for improving the ultraviolet light transmittance of ethylene glycol

Two dimensional non-field perturbing, diode detected, double gapped, high sensitivity, B-dot electromagnetic field probes

Optical encoder having controllable lead-lag phase trim sensitivity

Cysteine delivery composition

Apparatus and process for coextruding a fat and a dough

Confectionery compositions containing magnesium trisilicate adsorbates

Particleboard press with spring-loaded platen

Production of semiconductor devices

Process for recovering gold and silver from refractory ores

Marine riser structural core connector

Installation of communications cables

Method of and apparatus for the determination of the thermal insulating properties of building walls

Continuous, static mixing apparatus

Focus detecting and/or focus adjustment method

Motor drive device for camera

Electrical connector assembly