About: http://webisa.webdatacommons.org/281000501

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The article of claims 16, 17 or 19 wherein said article is a cathodic element in an electrolytic cell for the production of aluminum.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com