International patent classification / [publ. by] world intellectual property organization
Medverkande: World intellectual property organization [edt].
Materialtyp:
BokFörläggare: München, cop. 1979Upplaga: 3. ed.Beskrivning: 9 vol.ISBN: 3452185990.Ämnen: Patentklasser | IPC | Patent classification
Innehåll:
Reservationskommentar: 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
