4. High-voltage switches with arc preventing or extinguishing devic
  5. Arc preventing or extinguishing devices
  6. Vacuum

Steven D. Scholfield

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Integrated electrical system

High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Vacuum
Patent

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Method of making an integrated electrical system

Metal working – Method of mechanical manufacture – Electrical device making
Patent

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Pole step and attachment mount for poles

Fire escape – ladder – or scaffold – Wall- or floor-attached – Independent rung or step
Reexamination Certificate

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Profile ID: LFUS-PAI-P-381087

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