About: http://webisa.webdatacommons.org/38263995

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 toroidal wheel component of this invention is described as a single component herein, and preferably is formed by a manufacturing process producing a single piece such as injection molding or liquid urethane casting.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com