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

Zhi-Qiang Lan

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Digital camera and manual focus method thereof

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

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Digital camera and manual focus method thereof

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

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Image pick-up apparatus with curvature-of-field correction

Optical: systems and elements – Lens – Spherical
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2393090

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