Official catchword index to the second edition (1974) of the international patent classification
Official catchword index to the second edition (1974) of the international patent classification
- World Intellectual Property Organization (WIPO) London 1974
- vii,226p
- Catchword index International patent classification
P 3101
608.3OFF
Engineering & Technology
608.3
P 3101
608.3OFF
Engineering & Technology
608.3