About: http://webisa.webdatacommons.org/375814804

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 fins of an exemplary embodiment are produced from aluminum. [0017] The flue gas exchanger according to the invention may be used in many contexts, e.g. as a heat exchanger from a fuel device in a central heating installation.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com