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发明名称
Improvements in and relating to chessmen or pieces for playing the game of chess
摘要
申请公布号
GB552934(A)
申请公布日期
1943.04.30
申请号
GB19410016847
申请日期
1941.12.31
申请人
JOHN PERRY
发明人
分类号
A63F3/02
主分类号
A63F3/02
代理机构
代理人
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