About: http://webisa.webdatacommons.org/361633628

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	This selectivity of ratio is accomplished without levers, springs, or other mechanical devices which add to the cost and decrease the accuracy of the system.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com