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发明名称
Check board for games
摘要
申请公布号
US2382005(A)
申请公布日期
1945.08.14
申请号
US19420468593
申请日期
1942.12.10
申请人
DURKIN WILLIAM C
发明人
DURKIN WILLIAM C.
分类号
A63F3/06
主分类号
A63F3/06
代理机构
代理人
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