Multiple purpose well tools,申请号US19580775023-传众专利搜索

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发明名称	Multiple purpose well tools
摘要
申请公布号	US3065796(A)	申请公布日期	1962.11.27
申请号	US19580775023	申请日期	1958.11.19
申请人	JOHNSTON TESTERS, INC.	发明人	NUTTER BENJAMIN P.
分类号	E21B23/00;E21B34/12	主分类号	E21B23/00
代理机构		代理人
主权项
地址

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