About: http://webisa.webdatacommons.org/92806048

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	A track extrusion 328 formed of rigid material and preferably aluminum or other suitable material is shown in FIGS. 14, 15, 17 and 18.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com