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发明名称
MATHEMATICS TEACHING DEVICE
摘要
申请公布号
JPS5533106(A)
申请公布日期
1980.03.08
申请号
JP19780105409
申请日期
1978.08.29
申请人
GAARII GIRU
发明人
GAARII GIRU
分类号
G09B7/02;G09B5/00;G09B19/02
主分类号
G09B7/02
代理机构
代理人
主权项
地址
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