About: http://webisa.webdatacommons.org/438337042

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	An arm raising and lowering mechanism, such as a cable and jack or winch assembly 28, is provided for raising and lowering the arm.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com