4. Optics: eye examining, vision testing and correcting
  5. Spectacles and eyeglasses
  6. Ophthalmic lenses or blanks

Serge Legendre

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Copying machine notably for grinding concave surfaces

Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent

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Progressive ophthalmic lens

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent

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Profile ID: LFUS-PAI-P-207756

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