Bolted pipe joint,申请号US19340715438-传众专利搜索

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发明名称	Bolted pipe joint
摘要
申请公布号	US2010769(A)	申请公布日期	1935.08.06
申请号	US19340715438	申请日期	1934.03.14
申请人	THE UNITED GAS IMPROVEMENT COMPANY	发明人	PERRY JOSEPH A.
分类号	F16L21/04;F16L58/18	主分类号	F16L21/04
代理机构		代理人
主权项
地址

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