Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6416001
Is Reference of Union internationale de coopération en matière de brevets (Union PCT)-fr#Sense
International Patent Cooperation Union (PCT Union)-en#Sense
Internationale Unie voor samenwerking inzake octrooien (PCT-Unie)-nl#Sense
Den Internationale Patentsamarbejdsunion-da#Sense