Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6831
Is Reference of Vanne-clapet-fr#Sense
Paratoia a ventola-it#Sense
Klappenverschluss-de#Sense
Klappenschütze-de#Sense
Flap gate-en#Sense
Stauklappe-de#Sense
Clapet-fr#Sense
Klappverschluss-de#Sense