About: http://webisa.webdatacommons.org/313272502

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 present invention is a helmet mounted sight which determines the helmet position from externally mounted light sources and detectors with no such means attached to the helmet.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com