About: http://webisa.webdatacommons.org/409608646

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	The apparatus of claim 24 , wherein the fan is a variable speed fan so that drawing rate of the gas is controlled by controlling speed of the variable speed fan. 26.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk