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

Dirk Rathjen

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Apparatus for detecting deformations in pressed members

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

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Measurement of grooves and long waves on rails with a...

Data processing: measuring – calibrating – or testing – Measurement system – Dimensional determination
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1378025

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