About: http://webisa.webdatacommons.org/4245054

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	Main member 50 and displaceable locking member 53 are composed of relatively rigid material such as polyethylene.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com