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

Yuen-Hu Chen

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Element of an eyeware temple

Photography and optical equipment – Ophthalmic article – Element or attachment
Patent

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Spectacles

Photography and optical equipment – Ophthalmic article – Eyeglasses – eyewear – or frame therefor
Patent

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Spring hinge for spectacle frame

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

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Profile ID: LFUS-PAI-P-1530637

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