An educational aid,申请号GB19980023078-传众专利搜索

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发明名称	An educational aid
摘要
申请公布号	GB9823078(D0)	申请公布日期	1998.12.16
申请号	GB19980023078	申请日期	1998.10.21
申请人	LLOYD-MORRIS, TINA A	发明人
分类号	G09B1/06;G09B15/00	主分类号	G09B1/06
代理机构		代理人
主权项
地址

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