Welded spigot and socket joint,申请号US19260111451-传众专利搜索

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发明名称	Welded spigot and socket joint
摘要
申请公布号	US1816770(A)	申请公布日期	1931.07.28
申请号	US19260111451	申请日期	1926.05.24
申请人	THE FIRM MANNESMANNROHREN-WERKE	发明人	GRADL JOSEF
分类号	F16L13/02	主分类号	F16L13/02
代理机构		代理人
主权项
地址

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