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经营范围
发明名称
Add and subtract counter and control device for a game apparatus
摘要
申请公布号
US2423725(A)
申请公布日期
1947.07.08
申请号
US19430511789
申请日期
1943.11.26
申请人
PRODUCTION INSTRUMENT COMPANY
发明人
AMERICAN NATIONAL BANK AND TRUST COMPA;POOLE PAUL L.
分类号
A63D15/20
主分类号
A63D15/20
代理机构
代理人
主权项
地址
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