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Macro zoom lens system

Photography – Having variable focal length of camera objective – Having focus operation
Reexamination Certificate

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Macro-photographing system in zoom lens camera

Photography – Having variable focal length of camera objective – Having focus operation
Patent

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Magnification and focus adjustment control device

Photography – Having variable focal length of camera objective – Having focus operation
Patent

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Magnification change-over device for camera

Photography – Having variable focal length of camera objective – Having focus operation
Patent

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Magnification change-over device for camera

Photography – Having variable focal length of camera objective – Having focus operation
Patent

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Magnification change-over device for camera

Photography – Having variable focal length of camera objective – Having focus operation
Patent

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Method to determine auto focus of a digital camera

Photography – Having variable focal length of camera objective – Having focus operation
Reexamination Certificate

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Motor driven zoom camera

Photography – Having variable focal length of camera objective – Having focus operation
Patent

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Motor-driven auto-focusing system

Photography – Having variable focal length of camera objective – Having focus operation
Patent

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