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David James Bowen
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Swansea, GB
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last 30 patents
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Patent Grant
Refining molten metal
Patent number
4,113,469
Issue date
Sep 12, 1978
British Steel Corporation
Hugh W. Grenfell
C21 - METALLURGY OF IRON
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Patent Grant
Steelmaking
Patent number
4,104,058
Issue date
Aug 1, 1978
British Steel Corporation
Hugh Willmott Grenfell
C21 - METALLURGY OF IRON