4. Optics: measuring and testing
  5. Photometers
  6. Photoelectric

Susumu Shirai

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Aquascooter

Ships – Submersible device – Diver assistance device
Patent

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Dual mode camera exposure meters

Optics: measuring and testing – Photometers – Photoelectric
Patent

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Light measuring apparatus and light measuring method

Optics: measuring and testing – Photometers – Comparison
Reexamination Certificate

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Light measuring apparatus capable of measuring ambient light and

Optics: measuring and testing – Photometers – Photoelectric
Patent

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Multi-point light measuring system

Optics: measuring and testing – Photometers – Photoelectric
Reexamination Certificate

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Profile ID: LFUS-PAI-P-629045

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