Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6416001
Is Reference of Domanda di brevetto principale-it#Sense
Hauptpatentanmeldung-de#Sense
Main patent application-en#Sense
Hoofdoctrooi-aanvrage-nl#Sense
Demande de brevet principal-fr#Sense