IBM Intellectual Property
Network - Ïàòåíòíûé ñåðâåð IBM. Îáåñïå÷èâàåò
áåñïëàòíûé äîñòóï ê øèðîêîé êîëëåêöèè äàííûõ
(United States patents; European patents and patent applications; PCT application data
from the World Intellectual Property Office; Patent Abstracts of Japan; IBM Technical
Disclosure Bulletins )