About: http://webisa.webdatacommons.org/125032154

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	Preferably, the pump chamber is a secondary pump chamber and the pump means further includes a primary pump chamber and a flexible diaphragm mounted between the primary and secondary pump chambers.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com