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

David C. Griffin

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Apparatus packaging enclosure

Receptacles – Sectional – Knockdown
Reexamination Certificate

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Apparatus packaging enclosure

Design Patent

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Arc welder power source

Electric heating – Metal heating – By arc
Patent

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Cooling device and system for a plasma arc torch and...

Electric heating – Metal heating – By arc
Reexamination Certificate

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Fastening arrangement employing thread-forming screw

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Comprising a thread lock
Reexamination Certificate

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Profile ID: LFUS-PAI-P-131528

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