About: http://webisa.webdatacommons.org/378455445

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	In the drawings: Figure 1 is a plan view of entrance and exit barriers which may be used in such places as subways and on public conveyances or the like, said barriers being shown in closed positions.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com