About: http://webisa.webdatacommons.org/33876459

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	Accordingly, there is a need for a collapsible frame structure that can support relatively heavy loads, and yet remain easy to assemble.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com