Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/12
Is Reference of CIB-fr#Sense
Internationale Patentklassifikation-de#Sense
IPC-en#Sense
Classification internationale des brevets-fr#Sense
Internationella patentklassificeringssystemet-sv#Sense
International Patent Classification-en#Sense
IPC-sv#Sense
IPK-de#Sense