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

Essilor International "Cie Generale d'Optique

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Apparatus for determining the diameter of a lens to fit an eyegl

Geometrical instruments – Gauge – Spectacle
Patent

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Apparatus for machining, workpieces having curved surfaces, e.g.

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

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Apparatus for presentation of eye tests for testing near and dis

Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Subjective type
Patent

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Artificial optical lens and method of manufacturing it

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

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Automatic interpupillary distance measuring device

Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – For interpupillary distance measuring or lens positioning
Patent

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Profile ID: LFUS-PAI-P-1995856

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