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发明名称
Recording mechanism for games
摘要
申请公布号
US2152638(A)
申请公布日期
1939.04.04
申请号
US19330704658
申请日期
1933.12.30
申请人
DU PONT ELEUTHERE PAUL
发明人
PONT ELEUTHERE PAUL DU
分类号
A63D13/00;A63F7/02
主分类号
A63D13/00
代理机构
代理人
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