About: http://webisa.webdatacommons.org/57787906

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	Rebane, U.S. Pat. No. 3,857,022, provides a system including a positioning table that provides a signal representative of the position of a pen touched to a screen.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk