About: http://webisa.webdatacommons.org/282956362

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	about the central axis, with the slot including means to receive the retainer surface therein for placing the retainer surface in at least one of its predefined positions.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com