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David E. Margerum
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Middletown, OH, US
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last 30 patents
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Patent Grant
Ultra-rapid heat treatment of grain oriented electrical steel
Patent number
4,898,626
Issue date
Feb 6, 1990
Armco Advanced Materials Corporation
Jerry W. Shoen
C21 - METALLURGY OF IRON
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Patent Grant
Radio frequency induction heating device
Patent number
4,527,032
Issue date
Jul 2, 1985
Armco Inc.
Russel L. Young
C21 - METALLURGY OF IRON