About: http://webisa.webdatacommons.org/407357012

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 material of the cover may be a metal such as iron, aluminum or the like, or another known material such as resin, wood or the like.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com