General information on the third edition of the International patent classification.
Contributors: World Intellectual Property Organization.
Edition: 2nd ed.
Series: WIPO publication ;; no. 409
Publisher: World Intellectual Property Organization
Published: 1979
Place of publication: Geneva
Language: eng
Number of pages: 15
Subjects: Patents -- Classification.
Other titles: International patent classification (third edition 1979)
Notes: Rev. ed. of: International patent classification: general information.
Includes samples in various languages.
Cover title: International patent classification (third edition 1979): general information.