Administrative dispute over invalidation of a utility model patent between Woyite Patent Co., Ltd, CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd and the National Intellectual Property Administration

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Administrative dispute over invalidation of a utility model patent between Woyite Patent Co., Ltd, CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd and the National Intellectual Property Administration

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Updated : 2020-11-03