<http://webisa.webdatacommons.org/prov/210474735>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/81956932> .
<http://webisa.webdatacommons.org/81956932>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/81956932>	<http://www.w3.org/ns/prov#value>	"583+,for distributing systems including a gas vent and" .
<http://webisa.webdatacommons.org/81956932>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<uspto.gov> .