About: http://webisa.webdatacommons.org/207746483

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	FIG. 1b is a block diagram of an electronic book selection and delivery system that uses a composite video signal.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com