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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	Pitts U.S. Pat. No. 3,957,500 discloses a method of stabilizing zirconia to produce refractory bricks, sheets and other shapes.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com