4. Electricity: magnetically operated switches, magnets, and electr
  5. Permanent magnet-actuated switches
  6. Plural magnets

Erich Hufgard

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Contactless proximity switch

Electricity: magnetically operated switches – magnets – and electr – Permanent magnet-actuated switches – Plural magnets
Patent

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Electronic compass

Geometrical instruments – Indicator of direction of force traversing natural media – Magnetic field responsive
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Opto-electronic transducer arrangement having a lens-type optica

Optical waveguides – With optical coupler – Input/output coupler
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Profile ID: LFUS-PAI-P-1212941

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