Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Αλυσσοτροχός ελευθέρας περιστροφής-el#Sense
Rueda dentada loca-es#Sense
Kettingleiwiel-nl#Sense
Friløbskædehjul-da#Sense
Roue folle-fr#Sense
Kannatinpyörä-fi#Sense
Pignon fou-fr#Sense
Freilauf-Kettenrad-de#Sense
Pignone folle-it#Sense
Roda dentada louca-pt#Sense
Idling sprocket-en#Sense
"τεμπέλης"(κοιν.)-el#Sense