About: http://webisa.webdatacommons.org/249833455

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	Since the 1950s, all types of electronic apparatus (audio-tapes, video tapes, radios, telephones, TVs, computers) have been used in this field.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com