About: http://webisa.webdatacommons.org/16863336

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	One embodiment has each blade provided with a generally rigid sheet-like construction which may be made of metal such as sheet aluminum.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com