Improvements in or relating to drill bits,申请号GB19490029067-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	Improvements in or relating to drill bits
摘要
申请公布号	GB673124(A)	申请公布日期	1952.06.04
申请号	GB19490029067	申请日期	1949.11.14
申请人	SOCIETE "OUTIMINES" (SOCIETE A RESPONSABILITE LIMITEE)	发明人
分类号	E21B10/36	主分类号	E21B10/36
代理机构		代理人
主权项
地址

您可能感兴趣的专利

METHOD OF MONITORING STEEL EVACUATION PROCESS BY CIRCULATION METHOD

REFRACTORY COMPOUND

COMPLEX ADDITIVE TO CONCRETE MIX

METHOD OF PREPARING TITANIUM DIOXIDE OF ANATASE MODIFICATION

CRANE GANTRY BRAKING DEVICE

BUCKET GATE ACTUATOR

BELT CONVEYER ROLLER

ELASTIC CONVEYER

COMPOSED TYPE CASE

FLUX FOR WELDING ALUMINIUM AND ITS ALLOYS

METHOD OF WELDING A CIRCULAR ELEMENT INTO A STRUCTURE

SALT SOLUTION DEHYDRATION METHOD

CONVEYER BELT CLEANING DEVICE

TOOL UNIT FOR STAMPING IN CLOSED SETS

TUBE-EXPANDING DEVICE

DEVICE FOR SANITARY TREATMENT OF A TRANSPORTING MEMBER WITH CARRIERS

DUST-TRAPPING DEVICE