4. Optical: systems and elements
  5. Lens
  6. With variable magnification
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Ganged focus mechanism for an optical device

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

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Great aperture zoom lens

Optical: systems and elements – Lens – With variable magnification
Patent

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Great relative aperture telephoto zoom lens

Optical: systems and elements – Lens – With variable magnification
Patent

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Great relative aperture zoom lens

Optical: systems and elements – Lens – With variable magnification
Patent

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Guide apparatus of cam ring

Optical: systems and elements – Lens – With variable magnification
Patent

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Guide device for zoom lens barrel

Optical: systems and elements – Lens – With variable magnification
Patent

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