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Koppers-Wistra-Ofenbau Gesellschaft mit beschrankter Haftung
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Dusseldorf-Heerdt, DT
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Patents Grants
last 30 patents
Information
Patent Grant
Conveyor for transporting workpieces
Patent number
3,968,889
Issue date
Jul 13, 1976
Koppers-Wistra-Ofenbau Gesellschaft mit beschrankter Haftung
Gunter Hepp
F27 - FURNACES KILNS OVENS RETORTS
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Patent Grant
Burner systems for ovens and methods of operating such systems
Patent number
3,969,069
Issue date
Jul 13, 1976
Koppers-Wistra-Ofenbau Gesellschaft mit beschrankter Haftung
Rudiger Knaak
F27 - FURNACES KILNS OVENS RETORTS