About: http://webisa.webdatacommons.org/22586668

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	FIELD OF THE INVENTION This invention relates to training and display devices and more particularly to electronic devices which display information in coded form.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com