About: http://webisa.webdatacommons.org/292340074

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	An airport ground control system as described in claim 1, wherein the directional signals are adapted to display a plurality of types of signals. 6.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com