About: http://webisa.webdatacommons.org/441694462

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. 15 is a still further embodiment of the invention wherein the valve means is shown in a normally closed position;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com