<http://webisa.webdatacommons.org/293358578>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/410193549>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/293358578> .
<http://webisa.webdatacommons.org/293358578>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patentgenius.com> .
<http://webisa.webdatacommons.org/293358578>	<http://www.w3.org/ns/prov#value>	"In the preferred embodiment polycarbonate is used although other materials, such as epoxy polyurethane or polyester may also beused." .