Revised and enlarged by A. Wittmann, J. Klos; Supplement : special terms : patent drawings, text/word processing;. German and English. Title on added t.p.: Dictionary of patent terms. Parallelsacht.: Dictionary of patent terms. Parallelt.: Dictionary of patent terms. L'annexe contient : "Special terms, patent drawings, text/word processing " = "Fachbegriffe, Patentzeichnungen, Textverarbeitung.".