4. Photography and optical equipment
  5. Ophthalmic article
  6. Eyeglasses, eyewear, or frame therefor

Tien-Tzu Chang

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Collapsible glasses

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

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Spectacles

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

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Spectacles

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

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Spectacles

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

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Profile ID: LFUS-PAI-P-1418964

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