About: http://webisa.webdatacommons.org/154899626

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	This is not possible with voltage controlled systems of the prior art, such as the circuitry and apparatus disclosed in the aforementioned U.S. Pat. No. 5,107,408.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com