About: http://webisa.webdatacommons.org/426926372

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	In the '648 patent, spring mechanisms, such as disc or Bellville washer-type springs, are disclosed for use in athletic shoes.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr