Official catchword index to the eighth edition (2006) of the international patent classification.
- Geneva : World Intellectual Property Organization (WIPO), [2006 ].
- 289 p.
9280514431
Patents--Classification--Indexes
T 255 .F4 / O334 2006
9280514431
Patents--Classification--Indexes
T 255 .F4 / O334 2006