4. Industrial electric heating furnaces
  5. Electroslag remelting device
  6. Power supply system

Ragnar Tronstad

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Calcium-silicate based slag for treatment of molten silicon

Specialized metallurgical processes – compositions for use therei – Compositions – Solid treating composition for liquid metal or charge
Reexamination Certificate

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Calcium-silicate based slag for treatment of molten steel

Specialized metallurgical processes – compositions for use therei – Compositions – Solid treating composition for liquid metal or charge
Reexamination Certificate

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Method for determination of the tip position of consumable...

Industrial electric heating furnaces – Electroslag remelting device – Power supply system
Reexamination Certificate

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Silicon feedstock for solar cells

Chemistry of inorganic compounds – Silicon or compound thereof – Elemental silicon
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2096772

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