DRILLING SYSTEM WITH EXPANDABLE SLEEVE,申请号EP20020740555-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	DRILLING SYSTEM WITH EXPANDABLE SLEEVE
摘要
申请公布号	EP1381750(B1)	申请公布日期	2009.01.21
申请号	EP20020740555	申请日期	2002.04.26
申请人	SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.	发明人	VAN DIJK, ROBERT, ALBERTUS
分类号	E21B47/10;E21B7/20;E21B33/134;E21B43/10	主分类号	E21B47/10
代理机构		代理人
主权项
地址

您可能感兴趣的专利

THEOBROMINE DERIVATIVE AND ITS PREPARATION

ANTIALLERGIC AGENT

MANUFACTURE OF FIBER BOARD CORE MEMBER HAVING PERFORATION

MANUFACTURE OF RUBBER BLADDER FOR TYRE VULCANIZATION MOLDING

MANUFACTURE OF PERLITE MORTAR AND CONCRETE

MANUFACTURE OF HEAT-RESISTANT GYPSUM COMPOSITION

SEPARATION OF SELENIUM AND TELLURIUM FROM ACIDIC AQUEOUS SOLUTION

CRYSTAL REFINING DEVICE

GASIFYING DEVICE FOR CATTLE DUNG

HEATING AND QUICK COOLING METHOD IN ARC IMAGE FURNACE

DIESEL ELECTRIC LOCOMOTIVE

INSTALLATION DEVICE OF HYDRAULIC CONTROL VALVE

TIRE WHEEL STRUCTURE

ONE DIRECTION ROTATORY FEEDING MECHANISM

REFRIGERATING MACHINE

GAS FLOW RATE CONTROLLER FOR GAS LIGHTER RELEASE VALVE

COMBUSTION UNIT