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发明名称
英语单词记忆扑克
摘要
该扑克共54张牌。后视图均相同。
申请公布号
CN3005101S
申请公布日期
1990.03.07
申请号
CN89300222.4
申请日期
1989.02.14
申请人
刘若谷
发明人
刘若谷
分类号
21-01-P0306
主分类号
21-01-P0306
代理机构
代理人
主权项
地址
北京市和平里和平街十区八楼三单元2号
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