4. Specialized metallurgical processes, compositions for use therei
  5. Processes
  6. Producing or treating free metal

Ryuzou Hayakawa

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Method and apparatus for vacuum decarburization refining of...

Metallurgical apparatus – Means for melting or vaporizing metal or treating liquefied... – By providing – treating or protecting environment – e.g. – vacuum
Reexamination Certificate

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Method of vacuum decarburization/refining of molten steel

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

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Profile ID: LFUS-PAI-P-2151410

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