About: http://webisa.webdatacommons.org/14186209

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 back of the planar member 10 may be covered with backing material 52, such as fabric, leather, felt and other like material, if desired.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com