Ground joint pipe coupling,申请号US19370145180-传众专利搜索

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发明名称	Ground joint pipe coupling
摘要
申请公布号	US2109344(A)	申请公布日期	1938.02.22
申请号	US19370145180	申请日期	1937.05.28
申请人	SELGER HENRY L	发明人	SELGER HENRY L.
分类号	F16L19/02	主分类号	F16L19/02
代理机构		代理人
主权项
地址

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