letters patentˈletəzˈpeitənt短语⁷⁹⁹⁷⁸⁺⁹ 基本英英近义反义例句 n.专利特许证 Noun: an official document granting a right or privilege近义词patent专利 It's not necessary to transfer the possession of letters patent for the creation of the pledge right of patent right. 专利权质权的设定不以移转专利证书的占有为必要。 dictall