About: http://webisa.webdatacommons.org/250148077

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	FIG. 8 is a side elevational view of the present invention illustrating how the span of the joist may be varied to meet different requirements.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com