About: http://webisa.webdatacommons.org/213164927

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	FIG. 7 is a plan and sectional view of a pneumatic on-off valve of the inventive devices, which relies on a pneumatic control diaphragm to open and close an interconnecting port between two vias in the valve.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com