About: http://webisa.webdatacommons.org/290803268

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	A device according to claim 3, including drive means for simultaneously producing said pairs of magnetic field vectors by utilizing a separate instantaneous frequency for each said vector.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com