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Gerd Nashan
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Oberhausen, DT
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last 30 patents
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Patent Grant
Firebricks
Patent number
4,039,342
Issue date
Aug 2, 1977
Bergwerksverband GmbH
Wilhelm Reerink
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Processes of producing cokes of large lump size and improved streng...
Patent number
3,970,523
Issue date
Jul 20, 1976
Bergwerksverband GmbH
Kurt-Gunther Beck
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...