cassis classglossary / CASSIS/ CLASS CASSIS/CLASS.Patents. A U.S. Patent and Trademark Office database of patents sorted by classification, available at any PTO Depository Library. Cf. CASSIS/BIB. 词条贡献者 法律翻译Walker,在一家美国白鞋所担任专职法律翻译,专注翻译各类与特拉华州业务有关的法律文件。