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John R. McClelland
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Butler, PA, US
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last 30 patents
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Patent Grant
High temperature box annealing furnace
Patent number
4,504,957
Issue date
Mar 12, 1985
Armco Inc.
John R. McClelland
C21 - METALLURGY OF IRON
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Patent Grant
Method of annealing oriented silicon steel
Patent number
3,971,679
Issue date
Jul 27, 1976
Armco Steel Corporation
John H. Burger
C21 - METALLURGY OF IRON
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Patent Grant
Annealing furnace base plate supports
Patent number
3,939,296
Issue date
Feb 17, 1976
Armco Steel Corporation
John H. Burger
C21 - METALLURGY OF IRON