4. Photography
  5. Camera detail
  6. Diaphragm

Hiroaki Naganuma

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Electromagnetic drive device and light quantity adjustment...

Photography – Camera detail – Shutter
Reexamination Certificate

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Electromagnetic drive device and light quantity adjustment...

Electrical generator or motor structure – Dynamoelectric – Oscillating
Reexamination Certificate

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Electromagnetic driving unit and light quantity regulating...

Photography – Camera detail – Shutter
Reexamination Certificate

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Electromagnetic-driving device and light quantity-control...

Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate

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Exposure adjusting device for a camera

Photography – Camera detail – Diaphragm
Patent

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Profile ID: LFUS-PAI-P-745348

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