About: http://webisa.webdatacommons.org/385102938

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	The depth of the slots of parts 1 and 2, apart from the portion including the grooves in the second part, are designed to be 60-70% of the cross-section of each ring.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com