About: http://webisa.webdatacommons.org/354014242

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	Most manufacturers sold a variety of systems tailored to the needs of different kinds of transmission/recording channels
http://www.w3.org/ns/prov#wasQuotedFrom	richardhess.com