4. Photography
  5. Having variable focal length of camera objective
  6. Having focus operation
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Zoom lens barrel driving system for camera

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

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Zoom lens device

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

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Zoom lens drive system for lens shutter type of camera

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

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Zoom lens position control device

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

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Zoom lens system and adjusting method of same

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

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Zoom lens, and camera incorporating such zoom lens

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

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Zoom optical system, imaging lens device, and digital apparatus

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

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Zoom-lens drive control apparatus

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

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Zooming and focusing mechanism of camera

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

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Zooming device

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

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Zooming method and apparatus for a camera

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

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