Open hole hook wall packer,申请号US19520292068-传众专利搜索

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发明名称	Open hole hook wall packer
摘要
申请公布号	US2695067(A)	申请公布日期	1954.11.23
申请号	US19520292068	申请日期	1952.06.06
申请人	JOHNSTON TESTERS, INC.	发明人	SMITH JOSEPH D.;TAYLOR WILLIAM 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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