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发明名称
Record system for controlling progressive distribution of coupons
摘要
申请公布号
US2990197(A)
申请公布日期
1961.06.27
申请号
US19550540793
申请日期
1955.10.17
申请人
BRISKEY JOHN F
发明人
BRISKEY JOHN F.
分类号
G09F3/00
主分类号
G09F3/00
代理机构
代理人
主权项
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