About: http://webisa.webdatacommons.org/443292906

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	Each of the sprockets includes ahub in which there are formed a number of radial bores for receiving a bar or other tool, by means of which the sprocket can be turned relative to the housing.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com