한국   대만   중국   일본 
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বিশ্ব বৌদ্ধিক সম্পত্তি দিৱস
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???? 1 day
????? annual

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  1. 1.0 1.1 WIPO web site, World Intellectual Property Day ? 26 April . Consulted on 20 April 2011.

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