Educational game devices,申请号US19650496860-传众专利搜索

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发明名称	Educational game devices
摘要
申请公布号	US3343278(A)	申请公布日期	1967.09.26
申请号	US19650496860	申请日期	1965.10.18
申请人	ERLING JERMUNDSON	发明人	JERMUNDSON ERLING
分类号	G09B3/06	主分类号	G09B3/06
代理机构		代理人
主权项
地址

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