Valve control for subsurface well tools,申请号US19480044743-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	Valve control for subsurface well tools
摘要
申请公布号	US2671511(A)	申请公布日期	1954.03.09
申请号	US19480044743	申请日期	1948.08.17
申请人	BAKER OIL TOOLS, INC.	发明人	MATER BERNARDUS E.
分类号	E21B34/12	主分类号	E21B34/12
代理机构		代理人
主权项
地址

您可能感兴趣的专利

IRRIGATION INSTALLATION

DEVICE FOR SUPPORTING PLANTS

FOREST PLANTING MACHINE FOR PLANTING BRIQUETTED SEEDLINGS

MIX FOR STABILIZING EARTH-FILLED STRUCTURES

METHOD OF PLANT PROPAGATION BY CUTTINGS

ASSEMBLY OF FUEL ELEMENTS OF A NUCLEAR REACTOR

METHOD OF OPERATION OF AN INTERNAL COMBUSTION ENGINE

DEVICE FOR MAKING BAGS OR SACKS AND STACKING THEM

AUTOMATIC CONTROLLER FOR DISCONNECTING SWITCH

DEVICE FOR DRIVING ROLLER CHAIN

COMMUTATORLESS MOTOR

DEVICE FOR SEALING UP PACKAGE

ELECTRONIC MUSICAL INSTRUMENT

SHOES AND MAKING METHOD THEREOF

GENERATOR OUTPUT VOLTAGE CONTROL SYSTEM FOR POWER SUPPLY SYSTEM

POWER CIRCUIT OF FLASH DEVICE

TRANSVERSAL FILTER