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Brohltal-Deumag AG fur feuerfeste Erzeugnisse
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Urmitz b. Koblenz, DE
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Patent Grant
Heat exchanger construction and method of operation
Patent number
4,435,157
Issue date
Mar 6, 1984
Brohltal-Deumag AG fur feuerfeste Erzeugnisse
Hans-Eugen Buhler
C21 - METALLURGY OF IRON