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

Ulrich Backes

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Optical sensor device

Measuring and testing – Meteorology – Precipitation
Reexamination Certificate

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Optical sensor device

Optics: measuring and testing – Of light reflection
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Rotation angle transmitter and method of scanning a code...

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

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Profile ID: LFUS-PAI-P-2222164

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