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Hermann Cepin
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Duisburg, DE
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last 30 patents
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Patent Grant
Process and device for introducing bulk material into a rotary hear...
Patent number
5,944,514
Issue date
Aug 31, 1999
Mannesmann Aktiengesellschaft
Ulrich Pohl
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Submerged arc furnace with vertically movable frame
Patent number
5,729,569
Issue date
Mar 17, 1998
Mannesmann Aktiengesellschaft
Luciano Ambrosi
C21 - METALLURGY OF IRON
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Patent Grant
Charging electro furnaces
Patent number
4,702,461
Issue date
Oct 27, 1987
Mannesmann AG
Emil Herre
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Feed through structure for electrodes in electric furnaces
Patent number
4,587,659
Issue date
May 6, 1986
Mannesmann Aktiengesellschaft
Karl-Heinz Ungar
F27 - FURNACES KILNS OVENS RETORTS