About: http://webisa.webdatacommons.org/192116792

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	Books and other reference materials are retained on the secondary work support holder 30 by means of the pivotally mounted retaining arms 33, as shown in FIG. 1.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com