4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Photocell controls its own optical systems

Nobuo Katsumura

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Apparatus for measuring motor rotation position and speed

Electricity: measuring and testing – Electrical speed measuring – Including motor current or voltage sensor
Patent

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Automatic camera focusing apparatus with movable position sensit

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
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Camera with a shutter

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Profile ID: LFUS-PAI-P-198313

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