数学牌,申请号CN92303835.3-传众专利搜索

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发明名称	数学牌
摘要	省略其他视图。主视图1—28
申请公布号	CN3017616D	申请公布日期	1993.04.07
申请号	CN92303835.3	申请日期	1992.07.11
申请人	郭坚锐	发明人	郭坚锐
分类号	21-01	主分类号	21-01
代理机构		代理人
主权项
地址	410005湖南省长沙市连升街图书馆

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