About: http://webisa.webdatacommons.org/141716478

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	A cavity is thereby defined between the parts for storing such items as index cards, pens, pencils, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com