About: http://webisa.webdatacommons.org/52474685

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	This invention relates to portable book stands adapted to retain a book or other reading or visual material in an open position before a reader or viewer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com