About: http://webisa.webdatacommons.org/179401189

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 frame portion 11 may be constructed of tubular steel or other durable, rigid and strong material to support the weight of the bags when loaded.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com