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

Brian A. Schwartz

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Freewheeling current conduction in welding power supply

Electric power conversion systems – Current conversion – Using semiconductor-type converter
Reexamination Certificate

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Method and apparatus for welding with voltage control

Electric heating – Metal heating – By arc
Reexamination Certificate

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Method and apparatus for welding with voltage control

Electric heating – Metal heating – By arc
Reexamination Certificate

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Welding power supply having improved supplemental power circuit

Electric heating – Metal heating – By arc
Reexamination Certificate

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Welding power supply with laminated bus

Electric heating – Metal heating – By arc
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2380880

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