PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This invention relates to the minimization of pollutants in the air, and, more particularly refers to a new and improved method and apparatus for purifying an air or gas flow of combustible vaporous or gaseous impurities or pollutants by means of adsorption filters.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com.au