4. Optics: eye examining, vision testing and correcting
  5. Spectacles and eyeglasses
  6. With vertical adjustment of multifocal lenses
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Ophthalmic mounting for bifocal lenses

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With vertical adjustment of multifocal lenses
Patent

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Opthalmic frame for bi-focal lenses and nose patch therefor

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With vertical adjustment of multifocal lenses
Patent

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