4. Optical: systems and elements
  5. Lens
  6. Multiple component lenses

Ku-Yuan Chang

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Fixed focal length lens system

Optical: systems and elements – Lens – Multiple component lenses
Reexamination Certificate

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Lens module with an adjustable lens unit

Photography – With exposure objective focusing means – focusing aid – or... – Mechanical mechanism for displacement of exposure objective
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3193676

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