<http://webisa.webdatacommons.org/prov/447498131>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/394758995> .
<http://webisa.webdatacommons.org/394758995>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .
<http://webisa.webdatacommons.org/394758995>	<http://www.w3.org/ns/prov#value>	"Method and apparatus for monitoring keys and other articles - COBB; RICHARD G." .
<http://webisa.webdatacommons.org/394758995>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .