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KR20020015451A
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Lighting system including function of sunrise and sunset
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Method for transfer manufactured goods purchase information
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Method for Transfer Goods Information to others
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Common purchase method using bid by internet
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Structure of hinge part for stand
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Intermediary method by Goods transaction in Electronic Commerce
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Method for authentication of idea on the Internet
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Method for advertisement using sheeted banner
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Advertising method using quiz about goods
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The administration device for lighting fixtures
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The method of offering quizes on internet
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Overload prevention system in lamp
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Fluorescent lamp
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