4. Measuring, testing, or signalling instruments
  5. Measuring, regulating or indicating instrument, or casing
  6. Radiation, e.g., geiger counter

David J. Daniels

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Portable receiver unit for a metallic object detector

Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Radiation – e.g. – geiger counter
Patent

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Portable transmitter unit for a metallic object detector

Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Radiation – e.g. – geiger counter
Patent

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Profile ID: LFUS-PAI-P-1374829

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