Official catchword index to the second edition (1974) of the International patent classification.
Contributors: World Intellectual Property Organization; Council of Europe
Publisher: Published for the World Intellectual Property Organization (WIPO) in agreement with the Council of Europe by Morgan-Grampian
Published: 1974
Place of publication: London
Language: eng
Number of pages: 227
Subjects: Patents -- Classification -- Indexes
Genres: Classification
Other titles: International patent classification: index