KR20040059513A
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online email marketing, internet lottery sale, advertisement techniques
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KR20010112515A
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Internet-lottery for e-mail marketing
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KR20010110031A
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Internet-lottery using domain parking type webhosting
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KR20010109643A
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Reverse-auction method and Apparatus thereof in internet
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KR20010107352A
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Internet-lottery used AD-banner game
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KR20010107351A
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Method of advertising in internet
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KR20010097451A
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pre-sale system using internet
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KR20010095939A
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Wire and wireless internet advertising method using quiz game
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KR20010095938A
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Prepayment system using mileage
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KR20010093897A
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Method of debling using Internet
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KR20010094659A
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Method of dealing using Internet
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KR20010085169A
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Recycling method of mileage using a internet network game
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KR20010069156A
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Cutoff method of lewd chatting on the Internet chatting sites
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KR20010057850A
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Cutoff method of lewd chatting on the Internet chatting sites
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