4. Electricity: measuring and testing
  5. Measuring, testing, or sensing electricity, per se
  6. With coupling means

Pierre Laffont

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Electromagnetic relay polarized by a permanent magnet

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Patent

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Electromagnetic trip device with tripping threshold adjustment

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

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Measuring assembly with current sensor and supply transformer

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With coupling means
Patent

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Profile ID: LFUS-PAI-P-962360

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