About: http://webisa.webdatacommons.org/120529696

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	In one embodiment of the invention shafts 1 and 55 are formed from steel and the various elements including gears 3, 5, 53, wheels 10, 33, 45, 61, guide 9, cam 17 and pin 14 are formed from a self-lubricating plastic, such as Delrin???.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com