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

Pilkington Diffractive Lenses Limited

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Manufacture of visual lenses

Electric heating – Metal heating – By arc
Patent

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Manufacture of visual lenses

Adhesive bonding and miscellaneous chemical manufacture – Differential fluid etching apparatus – With microwave gas energizing means
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Method and contact lenses for treating presbyopia

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

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Rigid gas permeable lenses

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

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Profile ID: LFUS-PAI-P-667318

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