PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Valves including pressure enhanced sealing are identified by U.S. Pat. Nos. 1,844,641 of Dewein, 3,208,718 to White and 3,095,177 of Muller.
http://www.w3.org/ns/prov#wasQuotedFrom
  • patentgenius.com