4. Electricity: measuring and testing
  5. Magnetic
  6. With means to create magnetic field to test material

Nicholas R. De Torfino

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Metal detector

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Lost child or person locator
Patent

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Metal detector with vibrating tactile indicator mounted within a

Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Patent

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Profile ID: LFUS-PAI-P-926071

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