About: http://webisa.webdatacommons.org/33546115

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. 5 is an exemplary control circuit usable with the heater 10 wherein both heating chambers, the upper chamber 22 and the lower chamber 22, are to be used alternately.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com