Automatic punching machine,申请号US19280285809-传众专利搜索

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发明名称	Automatic punching machine
摘要
申请公布号	US1946913(A)	申请公布日期	1934.02.13
申请号	US19280285809	申请日期	1928.06.16
申请人	INTERNATIONAL BUSINESS MACHINES CORPORATION	发明人	MAUL MICHAEL
分类号		主分类号
代理机构		代理人
主权项
地址

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