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Stephen H. Keeley
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Lansdowne, CA
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last 30 patents
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Patent Grant
Production of an aluminum grain refiner
Patent number
5,100,618
Issue date
Mar 31, 1992
Alcan International Limited
Ernest W. Dewing
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...