Power wrench for well tubing and rods,申请号US19330679921-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	Power wrench for well tubing and rods
摘要
申请公布号	US2000221(A)	申请公布日期	1935.05.07
申请号	US19330679921	申请日期	1933.07.11
申请人	DAWSON CARLTON W	发明人	DAWSON CARLTON W.
分类号	E21B19/16	主分类号	E21B19/16
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Interferometric measuring device

Surface structure of flip chip substrate

Printer with a driven print media carriage

Linear actuator

Interoperable voice and data wireless network

Active noise control system for aircraft, and method for enhancing pilot situational awareness

A-AB transconductor

Welding condition monitoring device

Acceleration/deceleration detection device and method for four-cycle engines

Lithographic apparatus and device manufacturing method

Intra-abdominal pressure monitoring urinary catheter

Electronically servo-assisted bicycle gearshift and related method

Systems and methods for determining the bandwidth used by a queue

Heat sink assembly

Apparatus and method for delivery of network-specific codes to a mobile node

Device and method for adjusting backlight brightness

Dual wired integrated circuit chips

Methods and systems for planarizing microelectronic devices with Ge-Se-Ag layers

System for influencing and treating the air of at least one room