About: http://webisa.webdatacommons.org/187286094

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	Contact portion 518 can also include a concave surface, a convex surface, a receptacle, or other suitable configuration for contacting an engaging member.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com