WELL PACKER WITH RELEASABLE HEAD AND METHOD OF RELEASING,申请号GB19870008896-传众专利搜索

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发明名称	WELL PACKER WITH RELEASABLE HEAD AND METHOD OF RELEASING
摘要
申请公布号	GB2192919(B)	申请公布日期	1990.01.10
申请号	GB19870008896	申请日期	1987.04.14
申请人	* CAMCO INCORPORATED	发明人	JEFFREY LEE * KNIERIEMEN
分类号	E21B23/06;E21B29/00;E21B29/02;E21B33/12;E21B33/1295	主分类号	E21B23/06
代理机构		代理人
主权项
地址

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