Releasable apparatus for retrieving subsurface well devices,申请号US19530385335-传众专利搜索

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发明名称	Releasable apparatus for retrieving subsurface well devices
摘要
申请公布号	US2778428(A)	申请公布日期	1957.01.22
申请号	US19530385335	申请日期	1953.10.12
申请人	BAKER OIL TOOLS, INC.	发明人	BAKER REUBEN C.;CONRAD MARTIN B.
分类号	E21B23/06	主分类号	E21B23/06
代理机构		代理人
主权项
地址

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