Retrievable well packer,申请号US19510243982-传众专利搜索

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发明名称	Retrievable well packer
摘要
申请公布号	US2681113(A)	申请公布日期	1954.06.15
申请号	US19510243982	申请日期	1951.08.28
申请人	BAKER OIL TOOLS, INC.	发明人	BAKER REUBEN C.;CONRAD MARTIN B.
分类号	E21B33/129	主分类号	E21B33/129
代理机构		代理人
主权项
地址

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