4. Optics: measuring and testing
  5. Fiducial instruments
  6. Artificial reference

Robert L. Underberg

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Optics: measuring and testing – Angle measuring or angular axial alignment – Apex of angle at observing or detecting station
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Method and apparatus for adjusting laser instruments Z axis

Electric heating – Metal heating – By arc
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Optical sighting instrument

Optics: measuring and testing – Fiducial instruments – Artificial reference
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Profile ID: LFUS-PAI-P-937952

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