Rotary drill bits and methods of designing such drill bits,申请号EP19920300809-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	Rotary drill bits and methods of designing such drill bits
摘要
申请公布号	EP0502610(B1)	申请公布日期	1997.08.27
申请号	EP19920300809	申请日期	1992.01.30
申请人	CAMCO DRILLING GROUP LIMITED	发明人	TAYLOR, MALCOLM ROY;KEOHANE, ANDREW
分类号	E21B10/42;E21B10/43;E21B10/60;(IPC1-7):E21B10/46	主分类号	E21B10/42
代理机构		代理人
主权项
地址

您可能感兴趣的专利

SMART ELECTRIC VEHICLE AND SMART OPERATION METHOD THEREOF

DUAL MODE MOBILE TERMINAL AND METHOD FOR CONTROLLING THEREOF

ELECTRONIC CAM CONTROL DEVICE AND ELECTRONIC CAM CURVE GENERATING METHOD

ION GENERATION DEVICE

POSITION-BASED CONTEXT SELECTION FOR GREATER-THAN-ONE FLAG DECODING AND ENCODING

VERTICALLY ADJUSTABLE BOTTLE

POLLUTION WATER SAMPLE GATHERING SYSTEM

REFLECTANCE LIBRARY CLASSIFICATION METHOD

METAL SINTERED FILTER FOR SEMICONDUCTOR LINE

MOBILE TERMINAL, SERVER, SYSTEM, METHOD FOR CONTROLLING OF THE SAME

POLYCARBONATE RESIN COMPOSITION WITH HIGH TRANSPARENCY AND FLAME RETARDANCY AND PRODUCT BY USING THE SAME

DRYING EQUIPMENT FOR BATTERY

METHOD FOR PREPARATION OF NITROCYCLOPROPANE DERIVATIVES

METHOD FOR SHIELDING NOISE VIA PREVENTING ELECTROMAGNETIC WAVES IN POTABLE APPRATUS FOR PLAYING ULTRA HIGH-QUAILITY DIGITAL SOUND SOURCE

METHOD FOR MANAGING TAG INFORMATION

IMPLEMENTATION OF VARIOUS SOUND SOURCE SERVER ACCESS TECHNOLOGY IN SOUND SOURCE PLAYER PLAYED IN NETWORK

SEMICONDUCTOR APPARATUS

COMPOSITION COMPRISING THE EXTRACT OF HALIOTIS DISCUS HANNAI FOR WHITENING SKIN

THERMOSETTING RESIN COMPOSITION SUITABLE FOR MANUFACTURING REFLECTOR FOR SURFACE-MOUNT TYPE PHOTOSEMICONDUCTOR DEVICES