4. Photography
  5. Having variable focal length of camera objective
  6. Power zoom

Norio Nakai

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Lens barrel

Photography – Having variable focal length of camera objective – Power zoom
Patent

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Objective lens for image pickup apparatus with size of image pic

Optical: systems and elements – Lens – With variable magnification
Patent

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Single layer type electrophotographic photoconductor and...

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Reexamination Certificate

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Profile ID: LFUS-PAI-P-535355

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