Welded pipe joint,申请号US19310514685-传众专利搜索

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发明名称	Welded pipe joint
摘要
申请公布号	US1937239(A)	申请公布日期	1933.11.28
申请号	US19310514685	申请日期	1931.02.09
申请人	MCWANE CAST IRON PIPE COMPANY	发明人	MCWANE JAMES R.
分类号	F16L13/02;F16L51/02	主分类号	F16L13/02
代理机构		代理人
主权项
地址

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