4. Electrical transmission or interconnection systems
  5. Plural supply circuits or sources
  6. Substitute or emergency source

James B. Wallace

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Electric control system with mechanical interlock

Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Patent

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Mechanical interlock for vertically mounted circuit breakers

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Plural independently operable switches
Patent

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Profile ID: LFUS-PAI-P-1109448

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