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Ralph D. Geer
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Warren, OH, US
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last 30 patents
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Patent Grant
Furnace for heating and melting zinc
Patent number
4,705,260
Issue date
Nov 10, 1987
Republic Steel Corporation
Ralph D. Geer
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...