About: http://webisa.webdatacommons.org/21071452

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 invention is a viewing device, particularly a viewing device which allows an image consisting, for example, of symbols such as geographic or any other symbols, to be superimposed on a first image of, for example, a natural scene.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com