4. Photography
  5. Having variable focal length of camera objective
  6. Having focus operation

W. B. Pekey

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Projection type display device

Optics: image projectors – Distortion compensation – For projection axis inclined to screen
Reexamination Certificate

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Zoom lens and camera having the same

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

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Profile ID: LFUS-PAI-P-2884844

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