Disk perforator for pipes in wells,申请号US19460661939-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	Disk perforator for pipes in wells
摘要
申请公布号	US2565731(A)	申请公布日期	1951.08.28
申请号	US19460661939	申请日期	1946.04.13
申请人	EDGAR C. JOHNSTON	发明人	JOHNSTON JAMES LUTHER
分类号	E21B43/112	主分类号	E21B43/112
代理机构		代理人
主权项
地址

您可能感兴趣的专利

DEVELOPMENT OF ANIMAL REPELLENT GREENING METHOD FOR APPLYING SEED AND SEEDLING BY AIRPLANE

SHOES AND MANUFACTURING METHOD THEREFOR

AGRICULTURAL WORK VEHICLE

TRAVELING VEHICLE BODY

METHOD FOR MEASURING SPORE-BEARING BACTERIA

FOUNDATION STRUCTURE OF BUILDING

MOTION CONTROLLER, ENGINEERING TOOL, AND C LANGUAGE EXECUTION SYSTEM

OBJECT PROJECTION PANEL FOR REEL TYPE GAME MACHINE

CABINET AND EQUIPMENT FOR PARTITIONING LARGE ROOM INTO SEMI-PRIVATE ROOMS

METHOD FOR PRODUCING ALUMINUM FIN MATERIAL FOR HEAT EXCHANGER

Method for creating normal map data

Cooling liquid composition for fuel cell

Electrostatic discharge protection

Method for separating a useful layer and component obtained by said method