About: http://webisa.webdatacommons.org/382634849

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	n or at multiple axial locations in a gas conduit 14, such as a gas stack or duct.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com