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Optical apparatus

Photography – With exposure objective focusing means – focusing aid – or... – Optical detail with photoelement system
Reexamination Certificate

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Optical apparatus and image-taking system

Photography – With exposure objective focusing means – focusing aid – or... – Optical detail with photoelement system
Reexamination Certificate

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Optical apparatus including a light modulation finder optical sy

Photography – With exposure objective focusing means – focusing aid – or... – Optical detail with photoelement system
Patent

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Optical apparatus including optical element for deflecting...

Photography – With exposure objective focusing means – focusing aid – or... – Optical detail with photoelement system
Reexamination Certificate

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Optical system for focus detecting device

Photography – With exposure objective focusing means – focusing aid – or... – Optical detail with photoelement system
Reexamination Certificate

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Optical system of a focus detection apparatus

Photography – With exposure objective focusing means – focusing aid – or... – Optical detail with photoelement system
Reexamination Certificate

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Optical unit for detecting a focus state

Photography – With exposure objective focusing means – focusing aid – or... – Optical detail with photoelement system
Patent

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