4. Metal treatment
  5. Stock
  6. Carburized or nitrided

Herbert Schweiger

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Cold-worked steel of high compressive strength and articles made

Metal treatment – Stock – Carburized or nitrided
Patent

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Hot-working steel article

Alloys or metallic compositions – Ferrous – Chromium containing – but less than 9 percent
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1815786

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