About: http://webisa.webdatacommons.org/285383061

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	Magnetic means are provided for effecting movement of the transducer with the magnetic means including both permanent magnet means and electromagnet means in a preferred embodiment.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com