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发明名称
TEACHING OR AMUSEMENT APPARATUS
摘要
申请公布号
EP0099920(B1)
申请公布日期
1986.09.10
申请号
EP19830900793
申请日期
1983.02.10
申请人
PRICE/STERN/SLOAN PUBLISHERS, INC.
发明人
RIDDIFORD, MARTIN PHILLIP;FRAZER, STEPHEN OLIVER
分类号
A63F9/24;A63F9/18;A63H33/00;G01J1/02;G06F3/033;G06F3/048;G09B3/06;G09B5/02;G09B7/06;(IPC1-7):G09B7/06
主分类号
A63F9/24
代理机构
代理人
主权项
地址
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