<http://webisa.webdatacommons.org/235811956>	<http://www.w3.org/ns/prov#value>	"Matrix switch, 258, is a conventional matrix switch, well known in the art, with capacity for switching programming transmissions of television, radio, and other forms of electronically transmitted programming." .
<http://webisa.webdatacommons.org/prov/198622892>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/235811956> .
<http://webisa.webdatacommons.org/prov/247341080>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/235811956> .
<http://webisa.webdatacommons.org/235811956>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/235811956>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .