About: http://webisa.webdatacommons.org/442269088

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	example, the piston 34 can be formed of a porous material such as a screen, a filter, a mesh, or the like.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com