4. Horology: time measuring systems or devices
  5. Chronological
  6. With auxiliary illumination for display

Hirobumi Okuyama

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Alarm clock having an ambient light detector

Horology: time measuring systems or devices – Chronological – With auxiliary illumination for display
Patent

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Angle detecting apparatus and projector having the same

Optics: measuring and testing – Angle measuring or angular axial alignment – Photodetection of inclination from level or vertical
Reexamination Certificate

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Profile ID: LFUS-PAI-P-278995

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