4. Photography
  5. With exposure objective focusing means, focusing aid, or...
  6. Optical detail with photoelement system

Masashi Hankawa

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Electronic imaging apparatus

Optical: systems and elements – Lens – With variable magnification
Reexamination Certificate

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Electronic imaging apparatus

Optical: systems and elements – Lens – With variable magnification
Reexamination Certificate

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Eyepiece system

Optical: systems and elements – Lens – Eyepiece
Patent

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Eyepiece system having wide visual field

Optical: systems and elements – Lens – Eyepiece
Patent

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Eyepiece system having wide visual field

Optical: systems and elements – Lens – Eyepiece
Patent

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Profile ID: LFUS-PAI-P-294198

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