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发明名称
Combined score pad and game score indicator
摘要
申请公布号
US1940781(A)
申请公布日期
1933.12.26
申请号
US19320609541
申请日期
1932.05.05
申请人
WILSON ROLAND F
发明人
WILSON ROLAND F.
分类号
A63F1/18
主分类号
A63F1/18
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