About: http://webisa.webdatacommons.org/287807482

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	The apparatus of claim 85, wherein said azimuth computation means comprise magnetic sensor means and other sensor means not dependent on the North magnetic field, said apparatus further comprising:
http://www.w3.org/ns/prov#wasQuotedFrom	google.com