About: http://webisa.webdatacommons.org/384840300

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	This invention relates to the control of a large class of moving element systems described as electromagnetic actuators such as solenoids, contactors, or even trains.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com