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DARK FORSTERITE CERAMIC COMPOSITION
   
Document Number
US Patent 3649309
Issued Date
March 14, 1972
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Abstract
The composition comprises a primary phase of forsterite ceramic to which chromic oxide and cobaltic oxide are added in substantially equal amounts to darken the composition while not significantly changing the physical properties thereof.
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Number of Claims:
2
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Published
March 14, 1972
Application Number
05/072,823
Filed
September 16, 1970
US Classification
501/154   106/453
Int'l Classification
C04B   33/13   (20060101)   C04B   33/02   (20060101)   C04B   35/16   (20060101)  
Examiner
Assistant Examiner
USPTO Field of Search
106/39R   106/46   106/45   106/48   106/58   106/62   106/68   106/302   106/314   264/61  
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