4. Electric heating
  5. Metal heating
  6. By arc

Earl L. Kelly, Jr.

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Arc welding apparatus with variable polarity reversing device an

Electric heating – Metal heating – By arc
Patent

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Elevated-temperature, plasma-transferred arc welding of nickel-b

Electric heating – Metal heating – By arc
Patent

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Low electric D.C., low time rate polarity reversing arc welding

Electric heating – Metal heating – By arc
Patent

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Method for replacing a section of tubing

Metal fusion bonding – Process – Repairing – restoring – or renewing product for reuse
Patent

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Profile ID: LFUS-PAI-P-365242

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