Conduit connections and sealing means therefor,申请号US19530340372-传众专利搜索

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发明名称	Conduit connections and sealing means therefor
摘要
申请公布号	US2766829(A)	申请公布日期	1956.10.16
申请号	US19530340372	申请日期	1953.03.04
申请人	GRAY TOOL COMPANY	发明人	WATTS JOHN D.;HILL ERWIN F.
分类号	E21B33/00;E21B33/04	主分类号	E21B33/00
代理机构		代理人
主权项
地址

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