About: http://webisa.webdatacommons.org/429433569

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	FIG. 7 is a schematic, perspective view of another alternative embodiment of the invention in which the radiant heat source is isolated by a protective spacer structure.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com