Lehrgeraet,申请号DE19691914388-传众专利搜索

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发明名称	Lehrgeraet
摘要
申请公布号	DE1914388(A1)	申请公布日期	1969.10.09
申请号	DE19691914388	申请日期	1969.03.21
申请人	SULENG,LEIF	发明人	SULENG,LEIF
分类号	G09B5/06	主分类号	G09B5/06
代理机构		代理人
主权项
地址

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