About: http://webisa.webdatacommons.org/322600131

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 prior art of which applicant is aware indicates that such pumps have been proposed as early as 1913, with minor improvements being made through the years until the present time.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com