4. Optics: measuring and testing
  5. By polarized light examination
  6. With light attenuation

Jun Sasagawa

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Displacement measuring apparatus

Geometrical instruments – Distance measuring – Of flexible material
Reexamination Certificate

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Distance measuring apparatus

Optics: measuring and testing – By polarized light examination – With light attenuation
Patent

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Laser beam detecting device for a construction machine

Optics: measuring and testing – Fiducial instruments
Reexamination Certificate

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Surveying system

Optics: measuring and testing – Angle measuring or angular axial alignment – Apex of angle at observing or detecting station
Patent

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Profile ID: LFUS-PAI-P-1483411

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