About: http://webisa.webdatacommons.org/258662475

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	FIG. 22c is a schematic of how the third alternate embodiment of the rolling friction finger mechanism centers the object of FIG. 21 with respect to the X axis.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk