Method and apparatus for removing a pipe from the well,申请号US19600057873-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	Method and apparatus for removing a pipe from the well
摘要
申请公布号	US3227214(A)	申请公布日期	1966.01.04
申请号	US19600057873	申请日期	1960.09.20
申请人	WHANN RURAL W	发明人	WHANN RURAL W.
分类号	E21B31/107;E21B47/09	主分类号	E21B31/107
代理机构		代理人
主权项
地址

您可能感兴趣的专利

CHEMICAL PROCESSING BATH FOR SEMICONDUCTOR WAFER

VECTOR REGISTER ALLOCATING SYSTEM

RUNNING OPERATION DEVICE FOR CONSTRUCTION MACHINE

SEMICONDUCTOR DEVICE

AN IMPLEMENT FOR DISPLACING CROP

METHOD FOR THE PRODUCTION OF DIGITAL ROTATIONAL RATE AND ANGLE INFORMATION USING A RESOLVER

METALLIC SURFACE SEAL

PERFECTED DEVICE FOR THE INFEED OF LEATHER FLAPS IN A SEWING MACHINE FOR THE SEWING OF THE SAME

CABLE ANCHORING DEVICES

METHOD AND DEVICE FOR DETERMINING THE DENSITY OF AN ELEMENTARY VOLUME OF MATTER

FUEL SUPPLY CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE WITH IMPROVED ENGINE ACCELERATION CHARACTERISTICS AFTER FUEL CUT-OFF OPERATION

ANODE MATERIAL FOR ELECTROLYTIC MANGANESE DIOXIDE CELL

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE DISPLACEMENT MECHANISM

AIR-COOLING MECHANISM FOR THE INTERNAL CENTRE OF AN INTERNAL-COMBUSTION ENGINE

TUYERE ASSEMBLY AND POSITIONING METHOD

IMPROVEMENTS TO SEWING MACHINES FOR JOINING TWO KNITTED PIECES WITH A RIBBED EDGE AND A LONG JERSEY FIELD

MESHWORK REINFORCED AND PRE-STRESSED CONCRETE MEMBER, METHOD AND APPARATUS FOR MAKING SAME

PROCESS FOR PREPARING AROMATIC DIAMINES CONTAINING POLYDIORGANOSILOXANE GROUPS

HIGH STRENGTH SUPERALLOY COMPONENTS WITH GRADED PROPERTIES