International patent classification (sixth ed. 1994) : general information.

20 pages : illustrations ; 30 cm.

9789280505863

E 235G132 WIPO.G(6) 1994

Contents : Introduction; Structure of the IPC; The IPC Agreement of 1971; IPC publications and machine-readable products; Principles underlying the system; Use of the IPC for classifying the patent documents of various countries; Use of the IPC for the retrieval of patent documents; Assistance in classification of search files according to the IPC; Training in the use of the IPC;.

WIPO publication ; no. 409.

Geneva : World Intellectual Property Organization, 1995.

English