About: http://webisa.webdatacommons.org/23212816

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 wide variety of existing types of machines is the result of the effortmade to find economic production methods for the geometrically diverse gear-tooth forms.
http://www.w3.org/ns/prov#wasQuotedFrom	scribd.com