Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Leiter-de#Sense
Reddingsladder-nl#Sense
Schiffsleiter-de#Sense
Steigeleiter-de#Sense
Scarletta da marinaio-it#Sense
Redningsstige-da#Sense
Κλίμακα κινδύνου-el#Sense
Escala de gato-es#Sense
Échelle de sauvetage-fr#Sense
Scaletta d'ormeggio-it#Sense
Stige-da#Sense
Safety ladder-en#Sense