4. Electricity: measuring and testing
  5. Magnetic
  6. Displacement

Colin M. Finch

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Proximity sensing transducer with simulation means

Electricity: measuring and testing – Magnetic – Displacement
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System controlling apparatus which compares signals from sensors

Railway switches and signals – Electric automatic highway signals – mine doors – and gates – Normally open track circuit
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Profile ID: LFUS-PAI-P-633333

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