About: http://webisa.webdatacommons.org/438306714

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	In the preferred embodiment the J-shaped members 14 and 15 are fabricated from rectangular tubing such as steel, aluminum or other suitable material and the component members thereof are joined together by welding.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com