@article{18573,
      recid = {18573},
      title = {International patent classification.},
      pages = {9 volumes ;},
      note = {Dt. Textausg. u.d.T.: Internationale  Patentklassifikation.},
      abstract = {Vol 1 : Section A : Human Necessities 143p Vol 2 : Section  B : Performing Operations; Transporting 330p Vol 3 :  Section C : Chemistry, Metallurgy 258p Vol 4 : Section D :  Textiles; Paper 66p Vol 5 : Section E : Fixed Constructions  73p Vol 6 : Section F : Mechanical Engineering; Lighting;  187p Heating; Weapons; Blasting Vol 7 : Section G : Physics  157p Vol 8 : Section H : Electricity 143p Vol 9 : Guide,  Survey of Classes and Summary of Main Groups 301p Vol 10 :  Guide 31p See also Russian text (1984); Czech text (1979)  3rd ed; Polish text (1981) 3rd ed; Kept in the basement -3  with the Official Catchword Index;.},
      url = {http://tind.wipo.int/record/18573},
}