About: http://webisa.webdatacommons.org/6691932

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	An air valve according to claim 1 in which said actuator is a linear actuator having a ferromagnetic core positioned in accordance with current flow in a coil, said stem being nonmagnetic.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com