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African Intellectual Property Organisation (OAPI) Yaounde, Cameroon
African Regional Intellectual Property Organisation (ARIPO) Harare, Zimbabwe
Eurasian Patent Organization (EAPO) Moscow, Russia
European Patent Office (EPO) Munich, Germany
International Association for the Protection of Intellectual Property (AIPPI) Zurich, Switzerland
World Intellectual Property Organization (WIPO)
Geneva, Switzerland
Intellectual Property Digital Library (IPDL)
Patent Cooperation Treaty (PCT)
International Patent Classification (IPC)
US Patent Classification (USPC)
IPmenu guide to IP resources in Internet
SurfIP IP portal
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