Valvola Standard Electric per telefonia (XX)

https://dati.museoscienza.org/lod/resource/ScientificOrTechnologicalHeritage/D-001147-1 <https://w3id.org/arco/ontology/arco/ScientificOrTechnologicalHeritage>

valvola termoionica xsd:string
xsd:string Valvola Standard Electric per telefonia (XX) 
xsd:string Western Electric Company 
xsd:string 1922 - 1925 
xsd:string detenzione privata 
xsd:string valvola termoionica 
xsd:string Valvola per amplificatori telefonici usati in Italia dal 1922, in scatola originale sigillata. 
xsd:string D-1147-1 
xsd:string valvola elettronica 

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