About: http://webisa.webdatacommons.org/84703703

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	In alternative embodiments of the invention not incorporating a heatable screen, the screens 15, 15??? may be fashioned from non-conductive materials pervious to gas, such as paper or cloth.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com