By-pass joint for well testers,申请号US19350004940-传众专利搜索

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发明名称	By-pass joint for well testers
摘要
申请公布号	US2076684(A)	申请公布日期	1937.04.13
申请号	US19350004940	申请日期	1935.02.04
申请人	IDRIS THOMAS	发明人	THOMAS IDRIS
分类号	E21B34/12	主分类号	E21B34/12
代理机构		代理人
主权项
地址

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