About: http://webisa.webdatacommons.org/392130332

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Bell Labs found many new uses for the vacuum tube, exploiting it in areas including public address systems, radio, electrical phonograph recording, synchronized sound motion pictures, and transoceanic radio telephony.
http://www.w3.org/ns/prov#wasQuotedFrom	ethw.org