Official catchword index
Subtitle: to the seventh edition (1999) of the International patent classification.
Contributors: World Intellectual Property Organization.
Series: WIPO publication -- no. 561(E)
Publisher: World Intellectual Property Organization
Published: 1999
Place of publication: [Geneva, Switzerland]
Language: eng
Number of pages: 343
Subjects: International Patent Classification -- Indexes.; Patents -- Classification -- Indexes.
Genres: Classification