Global patent sources : an overview of international patents.

First edition.

1 volume (various paging) ; [28] cm

G 113 GLO

Appendices : 1. World Intellectual Property Organization (WIPO) country codes; 2. International agreed numbers for the identification of data (INID); 3. Patent kind of document codes; 4. Countries covered in Derwent services; 5. Derwent coverage of Japanese patents by International Patent Classification (IPC); 6.The Derwent classification for all technologies;.

London [England] : Derwent, 1996.

English