4. Optics: measuring and testing
  5. Photometers
  6. Heat absorbing

Heino Weigand

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Arrangement for the measurement of optical radiation of...

Optics: measuring and testing – Photometers – Heat absorbing
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Method for reproducing a fixation mark for ophthalmological...

Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2111906

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