About: http://webisa.webdatacommons.org/365972996

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	Although the present invention has been particularly described with respect to a plug valve having a generally semi-spherical-shaped element, the concepts of the present invention could be used for various types of plug valves.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk