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发明名称
Sensing positions of chess and like pieces
摘要
申请公布号
GB2215221(A)
申请公布日期
1989.09.20
申请号
GB19890001965
申请日期
1989.01.30
申请人
* SAITEK LIMITED
发明人
ERIC * WINKLER
分类号
A63F3/02
主分类号
A63F3/02
代理机构
代理人
主权项
地址
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