About: http://webisa.webdatacommons.org/154950601

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 prior art has used relatively expensive materials for stators which supply strength and durability such as plastics, metals, woods and other strong composites.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com