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

Aloysius Gerardus Majella Hemmer

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Switch with contacts which can be seen through a window

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

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Trip system for an electrical switch having a favorable...

Electricity: electrical systems and devices – Control circuits for electromagnetic devices
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2461051

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