4. Photography
  5. With viewfinder

Daisaku Arai

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Commom zoom optical system

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

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Viewfinder optical system, optical apparatus using the same...

Photography – With viewfinder
Reexamination Certificate

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Zoom lens system

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

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Zoom lens system

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

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Zoom lens, optical apparatus having the same, and...

Optical: systems and elements – Lens – Multiple component lenses
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2173130

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