Metal swaging machine,申请号US19320617972-传众专利搜索

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发明名称	Metal swaging machine
摘要
申请公布号	US1951738(A)	申请公布日期	1934.03.20
申请号	US19320617972	申请日期	1932.06.18
申请人	THE E. J. MANVILLE MACHINE COMPANY	发明人	PRACNY JOHN E.
分类号	B21F39/00	主分类号	B21F39/00
代理机构		代理人
主权项
地址

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