Frage- und Antwort-Lernspiel,申请号CH19700017660-传众专利搜索

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发明名称	Frage- und Antwort-Lernspiel
摘要
申请公布号	CH531765(A)	申请公布日期	1972.12.15
申请号	CH19700017660	申请日期	1970.11.30
申请人	HESENER,WALTER	发明人	HESENER,WALTER
分类号	G09B7/06;(IPC1-7):G09B3/06	主分类号	G09B7/06
代理机构		代理人
主权项
地址

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