Apparatus for drilling wells,申请号US19370138152-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	Apparatus for drilling wells
摘要
申请公布号	US2187092(A)	申请公布日期	1940.01.16
申请号	US19370138152	申请日期	1937.04.21
申请人	NEWMAN WILLIAM J	发明人	NEWMAN WILLIAM J.
分类号	E21D1/06	主分类号	E21D1/06
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Videocámara para visualizar los puntos ciegos estructurales de un vehículo

Förfarande och system för anpassning av ett fordons framförande på en vägbana relativt ett framförvarande fordon

Metod och kontrollsystem i samband med en parkeringsbroms

Förfarande, mätanordning och styrenhet för anpassning av ettväxellådssystem

A SHIELDING SYSTEM

SYSTEM AND METHOD FOR TRACKING ACTIVE CLIENTS IN WIRELESS MULTICAST NETWORK

COOPERATIVE RELAYING DATA METHOD AND SYSTEM FOR WIRELESS MESH NETWORK

SINGLE-PHASE MULTI-STRING FIVE-LEVEL GRID-CONNECTED PHOTOVOLTAIC INVERTER

Apparatus for controlling broadband access and distribution of content and communications through an access point

Data writing method, memory storage device and memory controlling circuit unit

Remote vehicle monitoring

Method for operating an internal combustion engine with gas as a fuel

Proppant vessel

Method and apparatus for mechanical load reduction on the electrical terminals of a capacitor

Optimization of interlayer handovers in multilayer wireless communication networks

Busy period determination based on weighted performance indicators

Camera triggering system for panorama imaging

Assisted text input for computing devices