Punching mechanism for perforating statistical records,申请号US19390270517-传众专利搜索

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发明名称	Punching mechanism for perforating statistical records
摘要
申请公布号	US2265754(A)	申请公布日期	1941.12.09
申请号	US19390270517	申请日期	1939.04.28
申请人	DANIEL BROIDO	发明人	BROIDO DANIEL
分类号	G06C11/08	主分类号	G06C11/08
代理机构		代理人
主权项
地址

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