About: http://webisa.webdatacommons.org/111485484

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	Another feature and advantage of this invention is a trap which is located below the gas withdrawal area of the pedestal to trap solid particles and gases which may not be withdrawn from the primary gas chamber.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com