About: http://webisa.webdatacommons.org/98418369

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 upper peripheral edge of the lower collar 26 is formed with undulations 32 which mate with the undulations 16 of the upper clamping collar 12 in clamping relation as particularly shown in FIGS. 2 and 6.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com