4. Electricity: magnetically operated switches, magnets, and electr
  5. Electromagnetically actuated switches
  6. Automatic circuit-interrupting devices

John Rowan

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Bell alarm for circuit breaker

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Patent

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Method and apparatus for automating hub and spoke Internet...

Multiplex communications – Diagnostic testing – Of a switching system
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1663417

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