Well testing device,申请号US19370172431-传众专利搜索

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发明名称	Well testing device
摘要
申请公布号	US2128716(A)	申请公布日期	1938.08.30
申请号	US19370172431	申请日期	1937.11.02
申请人	NOAH SMITH THOMAS	发明人	SMITH THOMAS NOAH
分类号	E21B49/08	主分类号	E21B49/08
代理机构		代理人
主权项
地址

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