About: http://webisa.webdatacommons.org/172175613

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 plaque 258 preferably includes depressions 259 for allowing the plaque to be hung on a wall. [0058] The arm assembly 252 is made of a rigid material, such as wood or metal.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com