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发明名称
EDUCATIONAL EQUIPMENT UTILIZING DATA COMMUNICATION
摘要
申请公布号
JPS6070474(A)
申请公布日期
1985.04.22
申请号
JP19830178190
申请日期
1983.09.28
申请人
KATANO SHIGEKI
发明人
KATANO SHIGEKI
分类号
G09B5/00;G06Q50/00;G06Q50/10;G06Q50/20;G09B5/12
主分类号
G09B5/00
代理机构
代理人
主权项
地址
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