4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

Volker Riech

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Calibration devices

Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
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Dimension measuring apparatus

Optics: measuring and testing – By configuration comparison – With photosensitive film or plate
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Measuring arrangement for testing a plurality of light waveguide

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Profile ID: LFUS-PAI-P-32639

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