4. Electricity: electrical systems and devices
  5. Safety and protection of systems and devices
  6. Ground fault protection

Ralph Mason Ennis

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Apparatus for testing protection of an electric power distributi

Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Patent

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Circuit breaker with common test button for ground fault and...

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

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Electrical switching apparatus including a baffle member...

High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Housing structure
Reexamination Certificate

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Miniaturized double pole circuit breaker with arc fault and grou

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – With housing or support means
Patent

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Separating pins for the shunt wires of a circuit breaker

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

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Profile ID: LFUS-PAI-P-1499364

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