Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Primärstation-sv#Sense
Knotenvermittlungsstelle-de#Sense
Centro de conmutación primario-es#Sense
Centrale di settore-it#Sense
Centrale interurbana di primo livello-it#Sense
Riksstation-sv#Sense
Central primaria-es#Sense
Primærcentral-da#Sense
KVSt-de#Sense
Solmukeskus-fi#Sense
Verkeerscentrale van de eerste orde-nl#Sense
Primary switching centre-en#Sense
Centre téléphonique primaire-fr#Sense
Primary switching center-en#Sense
Central primaire-fr#Sense
Central téléphonique primaire-fr#Sense
Primary exchange-en#Sense
Πρωτεύον μεταγωγικό κέντρο-el#Sense