TREPAN DE FORAGE PAR ROTATION,申请号BE19780189899-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	TREPAN DE FORAGE PAR ROTATION
摘要
申请公布号	BE869758(A1)	申请公布日期	1979.02.16
申请号	BE19780189899	申请日期	1978.08.16
申请人	SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.	发明人
分类号	E21B10/46;E21B10/60;(IPC1-7):E21B9/36	主分类号	E21B10/46
代理机构		代理人
主权项
地址

您可能感兴趣的专利

LED LIGHT SOURCE SYSTEM AND LED LIGHTING DEVICE

LIQUID CRYSTAL DISPLAY DEVICE AND COLOR FILTER SUBSTRATE

COMPOSITION COMPRISING A BIOLOGICAL CONTROL AGENT AND A FUNGICIDE

DISPLAY PANEL WITH PRESSING SENSOR, AND ELECTRONIC DEVICE WITH PRESSING INPUT FUNCTION

CHIP PACKAGING STRUCTURE AND CHIP PACKAGING METHOD

COSMETIC AND HOUSEHOLD CARE COMPOSITIONS

MUSCLE WALL DEFECT PROSTHESIS AND DEPLOYMENT SYSTEM

INFLATION DEVICE FOR BALLOON SINUS DILATION

HIGHLY ABRASION-RESISTANT ANTI-LIME LAYERS WITH HIGH CHEMICAL RESISTANCE

LIQUID DISCHARGE APPARATUS AND MANUFACTURING METHOD THEREOF

TRANSMISSION CONTROL METHOD AND SYSTEM

ANTIMICROBIAL COMPOSITIONS, WIPES, AND METHODS

AQUEOUS OPHTHALMIC SOLUTIONS OF PHENTOLAMINE AND MEDICAL USES THEREOF

CONVERSION SCOOTER

METHODS AND SYSTEMS FOR ONLINE MONITORING USING A VARIABLE DATA SAMPLING RATE

FLUID FLOW MODIFICATION APPARATUS

HOLLOW FIBRE MEMBRANE AND HOLLOW FIBRE MEMBRANE MODULE INCLUDING SAME

ALERTNESS LEVEL DETECTION DEVICE AND ALERTNESS LEVEL DETECTION METHOD

LEAD CONNECTOR WITH A PREMANUFACTURED DISTAL END AND METHOD OF MANUFACTURE