International patent classification / World Intellectual Property Organization
Medverkande: World Intellectual Property Organization [oth].
Materialtyp: BokFörläggare: München : Heymann, 1989Upplaga: 5. ed.ISBN: 3452215229 (Vol. 18, 10); 3-452-21407-9 (Vol. 1-9).Ämnen: Patentklasser | IPC | Patent classification
Innehåll:
Andra utgåvor:
Vol. 1. Section A, human necessities -- Vol. 2. Section B, performing operations, transporting -- Vol. 3. Section C, chemistry, metallurgy -- Vol. 4. Section D, textiles, paper -- Vol. 5. Section E, fixed constructions -- Vol. 6. Section F, mechanical engineering, lighting, heating, weapons, blasting -- Vol. 7. Section G, physics -- Vol. 8. Section H, electricity -- Vol. 9. Guide, survey of classes, and summary of main groups -- Vol. 10. Guide