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发明名称
SALES PROMOTION SYSTEM USING THE LOTTERY OF DISCOUNT COUPON AND THE METHOD THEREOF
摘要
申请公布号
KR100754455(B1)
申请公布日期
2007.08.31
申请号
KR20050082715
申请日期
2005.09.06
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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