4. Metal treatment
  5. Process of modifying or maintaining internal physical...
  6. Producing or treating layered, bonded, welded, or...

Barry D Smith

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Method and apparatus for heat-treating an article and a...

Metal treatment – Process of modifying or maintaining internal physical... – Producing or treating layered – bonded – welded – or...
Reexamination Certificate

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Method and apparatus for heat-treating an article and a...

Metal treatment – Process of modifying or maintaining internal physical... – Producing or treating layered – bonded – welded – or...
Reexamination Certificate

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Welding torch and shield

Electric heating – Metal heating – Nonatmospheric environment at hot spot
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2428832

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