UEBUNGS- UND ARBEITSGERAET FUER DEN RECHENUNTERRICHT.,申请号DE196200R4766U-传众专利搜索

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发明名称	UEBUNGS- UND ARBEITSGERAET FUER DEN RECHENUNTERRICHT.
摘要
申请公布号	DE1862566(U)	申请公布日期	1962.11.22
申请号	DE196200R4766U	申请日期	1962.08.30
申请人	KARLHEINZ RAMMELKAMP	发明人	KARLHEINZ RAMMELKAMP
分类号		主分类号
代理机构		代理人
主权项
地址

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