Tubing test tools,申请号US19520296353-传众专利搜索

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发明名称	Tubing test tools
摘要
申请公布号	US2742093(A)	申请公布日期	1956.04.17
申请号	US19520296353	申请日期	1952.06.30
申请人	TRI-STATE OIL TOOL COMPANY, INC.	发明人	VAUGHN ALFRED
分类号	E21B34/00;E21B34/12;E21B47/10	主分类号	E21B34/00
代理机构		代理人
主权项
地址

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