DUAL PASSAGE WELL DRILLING PIPE,申请号CAD669302-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	DUAL PASSAGE WELL DRILLING PIPE
摘要
申请公布号	CA669302(A)	申请公布日期	1963.08.27
申请号	CAD669302	申请日期
申请人	GAS DRILLING SERVICES CO.	发明人	NORMAN C. WELLS
分类号		主分类号
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Glazing installations

Monitoring of exhaust gas oxygen sensor performance

AN OLEOSIN 5` REGULATORY REGION FOR THE MODIFICATION OF PLANT SEED LIPID COMPOSITION

DROSPIRENONE CONTAINING TRANSDERMAL DRUG DELIVERY DEVICES AND METHODS OF DELIVERY THEREOF

METHOD FOR PRODUCING HIGHLY REACTIVE ISOBUTYLENE HOMO- OR COPOLYMERS USING METAL-CONTAINING CATALYST COMPLEXES

MAGAZZINO PER BARRE E SIMILI

Fluid Flow Control System

Wood preservative formulations comprising RH-287

METHOD FOR SWITCHING FROM AT LEAST ONE FIRST COMMUNICATION SERVICE TO AT LEAST ONE SECOND COMMUNICATION SERVICE IN ORDER TO TRANSMIT DIFFERENT DATA CONTENTS

SYSTEMS AND METHODS FOR DEFLECTING PLASMA-GENERATED IONS TO PREVENT THE IONS FROM REACHING AN INTERNAL COMPONENT OF AN EUV LIGHT SOURCE

MUSIC COMPOSITION DATA EDITION DEVICE AND MUSIC COMPOSITION DATA EDITION METHOD

Laboratory sample archiving apparatus and method

Air hybrid vehicle

DEVICE AND METHOD FOR PERFORMING MAINTENANCE ON A MEASURING APPARATUS IN A FLOW DUCT

LIGHT-EMITTING DEVICE AND METHOD FOR MANUFACTURING SAME

ORTHOPEDIC ROD WITH LOCKING APERTURE

CIRCUIT FOR GENERATING DRIVING VOLTAGES, DISPLAY DEVICE USING THE SAME, AND METHOD OF GENERATING DRIVING VOLTAGES