Die controlling mechanism for open die metal heading machines,申请号US19300468293-传众专利搜索

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发明名称	Die controlling mechanism for open die metal heading machines
摘要
申请公布号	US1804029(A)	申请公布日期	1931.05.05
申请号	US19300468293	申请日期	1930.07.16
申请人	THE E. J. MANVILLE MACHINE COMPANY	发明人	PRACNY JOHN E.
分类号	B21K1/44	主分类号	B21K1/44
代理机构		代理人
主权项
地址

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