4. Optics: eye examining, vision testing and correcting
  5. Spectacles and eyeglasses

Tsung-Hui Huang

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Head belt of head magnifying glass

Optical: systems and elements – Lens – With viewed object or viewed field illumination
Reexamination Certificate

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Head magnifying glass

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses
Patent

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Magnifying device

Photography and optical equipment – Optical article not elsewhere specified – Lens or objective
Design Patent

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Magnifying glass with light for handheld electronic device

Optical: systems and elements – Lens – With viewed object or viewed field illumination
Reexamination Certificate

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Profile ID: LFUS-PAI-P-194943

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