Index to patent classification of the German Federal Republic (Stichwörterverzeichnis)
Subtitle: an alphabetical index by key-words of subject matter pertaining to useful arts with the relevant patent classes, subclasses, groups, and subgroups.
By: Compiled by the Patent Office of the German Federal Republic (Deutsches Patentamt).
Edition: 5th ed. [translated and edited by IPST staff]
Publisher: Israel Program for Scientific Translations; [available from the U.S. Dept. of Commerce, Clearinghouse for Scientific and Technical Information, Springfield, Va.]
Published: 1966
Place of publication: Jerusalem
Language: eng
Number of pages: 453
Subjects: Patents -- Germany -- Classification.