Process of shaping metal tubes,申请号US19300439955-传众专利搜索

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发明名称	Process of shaping metal tubes
摘要
申请公布号	US1983584(A)	申请公布日期	1934.12.11
申请号	US19300439955	申请日期	1930.03.29
申请人	URSCHEL ENGINEERING COMPANY	发明人	URSCHEL BERTIS H.
分类号	B21C37/15	主分类号	B21C37/15
代理机构		代理人
主权项
地址

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