Cover image for International patent classification.
Title:
International patent classification.
Author:
World Intellectual Property Organization.
Edition:
Fifth edition.
Publication Information:
[Geneva, Switzerland] : World Intellectual Property Organization ; München : C. Heymanns Verlag, 1989.
Physical Description:
9 volumes ; 30 cm
Language:
English
Contents:
v. 1. Section A, human necessities -- v. 2. Section B, performing operations, transporting -- v. 3. Section C, chemistry, metallurgy -- v. 4. Section D, textiles, paper -- v. 5. Section E, fixed constructions -- v. 6. Section F, mechanical engineering, lighting, heating, weapons, blasting -- v. 7. Section G, physics -- v. 8. Section H, electricity -- v. 9. Guide, survey of classes, and summary of main groups.
Format :
Book