LEHRMITTEL ZUM RECHNEN MIT ZAEHLKOERPERN.,申请号DE195000N0554U-传众专利搜索

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发明名称	LEHRMITTEL ZUM RECHNEN MIT ZAEHLKOERPERN.
摘要
申请公布号	DE1619007(U)	申请公布日期	1951.01.25
申请号	DE195000N0554U	申请日期	1950.07.04
申请人	BERNHARD NIEPAGE	发明人	BERNHARD NIEPAGE
分类号		主分类号
代理机构		代理人
主权项
地址

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