<http://webisa.webdatacommons.org/209021297>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .
<http://webisa.webdatacommons.org/prov/426648388>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/209021297> .
<http://webisa.webdatacommons.org/209021297>	<http://www.w3.org/ns/prov#value>	"The screen panels 5 are cast or molded from plastics material, such as polyurethane, and may be internally reinforced with one or more metal elements, such as steel bars (not shown)." .
<http://webisa.webdatacommons.org/209021297>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .