<http://webisa.webdatacommons.org/52832116>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/52832116>	<http://www.w3.org/ns/prov#value>	"The system defined in claim 20, wherein the switch is a digital switch." .
<http://webisa.webdatacommons.org/prov/388946506>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/52832116> .
<http://webisa.webdatacommons.org/52832116>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .