<http://webisa.webdatacommons.org/prov/109887879>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/204234872> .
<http://webisa.webdatacommons.org/204234872>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .
<http://webisa.webdatacommons.org/prov/67472769>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/204234872> .
<http://webisa.webdatacommons.org/204234872>	<http://www.w3.org/ns/prov#value>	"The disk flow restrictor can be made of any rigid material such as metal or plastic polymers including polyethylene, polypropylene and other polyolefins." .
<http://webisa.webdatacommons.org/204234872>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .