manual of classification

Manual of Classification. Patents. The U.S. Patent and Trademark Office’s official looseleaf publication describing the patent classification system and giving brief explanations of each class and subclass within the system.

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词条贡献者

法律翻译Johnny，毕业于新加坡知名法学院，专注翻译各类与劳动、雇佣和福利有关的法律文件。