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DE582534C
|
|
Process for the production of highly refractory masses
|
|
DE590242C
|
|
Siemens-Martin furnace made of cast refractory materials
|
|
DE562635C
|
|
Cross-sectional narrowing device for the trains of regenerative ovens
|
|
DE516887C
|
|
Siemens-Martin furnace made of cast, refractory materials
|
|
DE579811C
|
|
Gas-fired log furnace
|
|
DE560241C
|
|
Gas-fired log furnace
|
|
DE488694C
|
|
Regenerative direct current furnace with direct heating of the two heat accumulators connected by ducts
|
|
GB276347A
|
|
Improved process for the purification of combustible gas
|
|
DE462801C
|
|
Regenerative gas co-current furnace
|
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DE466693C
|
|
Co-current regenerative gas furnace
|
|
DE506353C
|
|
Regenerative heating and melting furnace with pulverized coal combustion
|
|
GB293326A
|
|
Improvements in or relating to the manufacture of steel in the siemens-martin furnace
|
|
GB291717A
|
|
Improvements in or relating to the manufacture of steel in the siemens-martin furnace
|
|
DE471525C
|
|
Regenerative direct current furnace
|
|
DE451530C
|
|
Production of sulfur trioxide from a gas mixture containing hydrogen sulfide
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|
DE457006C
|
|
Gas firing for poor gases with preheating of the combustion air
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|
DE451042C
|
|
Burner head for regenerative gas ovens, especially Siemens-Martin ovens
|
|
DE426185C
|
|
Process for warming up steel blocks, billets or the like in carousel ovens
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|
DE477260C
|
|
Tunnel furnace for ceramic goods with regenerative gas firing
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DE429336C
|
|
Latticework for heat storage and reaction rooms made of stones with constant cross-section
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