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发明名称
折叠式算盘
摘要
1.产品具双轴结构,折叠后,整体长度可缩短一半;
申请公布号
CN3055446D
申请公布日期
1997.03.05
申请号
CN96315470.2
申请日期
1996.01.26
申请人
广州教育玩具厂
发明人
李滨
分类号
18-01-A0001
主分类号
18-01-A0001
代理机构
广州市专利事务所
代理人
罗庆西;杜海
主权项
地址
510300广东省广州市海珠区新港西路179号
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