TY  - BOOK
ED  - World Intellectual Property Information (WIPO) <Geneva>
TI  - General Information on the eight edition of the International Patent Classification (IPC)
T2  - WIPO-Publication
SN  - 92-805-1514-4
PY  - 2006///
CY  - Geneva, 
KW  - Internationale Patentklassifikation
KW  - Information
ER  -