About: http://webisa.webdatacommons.org/409511665

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 shaft 11 can be reloaded with a new projectile head 13 if the original is lost.The blades 14 themselves are made of cast or forged steel or other suitable metal.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com