About: http://webisa.webdatacommons.org/142419409

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	Such a device, and various forms of the device, is shown and described in U.S. Pat. Nos. 5,669,909 and 5,782,919.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com