About: http://webisa.webdatacommons.org/311759491

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	A device as recited in claim 8 , wherein the at least one valve is a one way check valve in an inlet tube and a normally closed valve in an outlet tube. 11.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com