About: http://webisa.webdatacommons.org/255775140

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	According to another feature of the present invention, the tubular member is provided with a door or other structure for closing the lateral opening upon a retraction of the retractor member back into the tubular member.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com