Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 26, 2009
0Patent Application Number
105005020
Date Filed
December 18, 2002
0Patent Primary Examiner
Patent abstract
The sintered body of gastight translucent polycrystalline alumina contains oxidic magnesium, an oxidic second metal selected from erbium, holmium, thulium and dysprosium, and oxidic zirconium. The body can be used in a lamp vessel of an electric lamp.
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