Valvola per esperienza di Frank-Hertz
https://dati.museoscienza.org/lod/resource/DesignationInTime/IGB-011005-1 <https://w3id.org/arco/ontology/denotative-description/DesignationInTime>
xsd:string
Valvola per esperienza di Frank-Hertz
xsd:string
consuetudinaria