<http://webisa.webdatacommons.org/prov/99851520> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/29462773> . <http://webisa.webdatacommons.org/29462773> <http://www.w3.org/ns/prov#value> "nitrogen, such as argon or helium, for use as a purging gas and/or as a" . <http://webisa.webdatacommons.org/29462773> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/29462773> <http://www.w3.org/ns/prov#wasQuotedFrom> <patents.com> . <http://webisa.webdatacommons.org/prov/298093982> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/29462773> .