About: http://webisa.webdatacommons.org/434952988

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	No. 134,773 filed Mar. 28, 1980 and now U.S. Pat. No. 4,294,721 which in turn is a continuation of Ser.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com