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发明名称
EDUCATIONAL AND/OR COMPUTER DEVICE
摘要
申请公布号
IL89215(D0)
申请公布日期
1989.09.10
申请号
IL19890089215
申请日期
1989.02.08
申请人
GIL DRUKMAN
发明人
分类号
A63H;(IPC1-7):A63H/
主分类号
A63H
代理机构
代理人
主权项
地址
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