Seminars on Patent Information & the IPC
TH/IPC (1)
January 19 to January 23, 1981 (Chiang Mai, Thailand) Onsite
121 - 123 / 123 items
TH/IPC (1)
January 19 to January 23, 1981 (Chiang Mai, Thailand) Onsite
PAS
May 21 to May 23, 1979 (London, United Kingdom) Onsite
ECA/WIPO/IV
December 5 to December 12, 1977 (Accra, Ghana) Onsite