About: http://webisa.webdatacommons.org/215811164

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	20. The device of any of claims 11, 12, 17, 18, or 19, wherein the heater is a temperature controlled and fan operated charcoal fuel element heater.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com