PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The U.S. Pat. No. 5,094,087 discloses an apparatus incorporating a purifying filter for reclaiming and recovering volatile liquids such as a refrigerant contained in a closed network.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com