TY  - BOOK
ED  - Wordl Intellectual Property Organization (WIPO) <Geneva>
TI  - Official Catchword Index to the third edition (1979) of the International Patent Classification
PY  - 1979///
CY  - München: 
PB  - Heymann, 
KW  - Internationale Patentklassifikation
KW  - Stichwortindex
KW  - Englisch
N1  - 15.977, 16.133
ER  -