4. Metal treatment
  5. Process of modifying or maintaining internal physical...
  6. Heating or cooling of solid metal

Pohang Iron & Steel Co. Ltd.

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2-stage fluidized bed furnace for pre-reducing fine iron ore and

Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent

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2-stage fluidized bed type fine iron ore reducing apparatus,...

Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Reexamination Certificate

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3-Stage fluidized bed type fine iron ore reducing apparatus havi

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace
Patent

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Apparatus and a method for controlling thickness of a strip...

Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate

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Apparatus and method for measuring the molten metal level in...

Specialized metallurgical processes – compositions for use therei – Processes – Process control responsive to sensed condition
Reexamination Certificate

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