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Query > PCT > English
https://wipolex.wipo.int/en/text/181190
Publication year: 1996
The Patent Cooperation Treaty (PCT) in 1994
Comprehensive facts, figures and analysis of the international patent system.
Publication year: 1995
Strasbourg Agreement Concerning the International Patent Classification
The Agreement establishes the International Patent Classification (IPC) which divides technology into eight sections with approximately 70,000 subdivisions
Publication year: 1982