About: http://webisa.webdatacommons.org/333218563

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	Description of the Prior ArtVarious types of tools are known to facilitate the spreading or axial extension of helical tension springs.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com