IATE-1600897

Instance of: http://www.w3.org/2004/02/skos/core#Concept

Subject Field	Subject Field/6826
Is Reference of	Glødekatoderør-da#Sense
	Tubo termoiónico-pt#Sense
	Thermionic valve-en#Sense
	Λυχνία θερμοϊονική-el#Sense
	Termionrør-da#Sense
	Tube thermoionique-fr#Sense
	Λάμπα θερμοϊονική-el#Sense
	Glühkathodenröhre-de#Sense
	Tubo termoiónico-es#Sense
	Thermionische buis-nl#Sense
	Tubo termoionico-it#Sense