4. Optics: eye examining, vision testing and correcting
  5. Spectacles and eyeglasses
  6. Invertible or reversible multifocal type
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Auxiliary nosepiece for eyeglasses

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Invertible or reversible multifocal type
Patent

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Bifocal-compensating eyeglass attachment

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Invertible or reversible multifocal type
Patent

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Eyeglasses assembly

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Invertible or reversible multifocal type
Reexamination Certificate

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Eyeglasses with invertable lens carriers

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Invertible or reversible multifocal type
Patent

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Golf bifocals

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Invertible or reversible multifocal type
Patent

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Invertible eyewear

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Invertible or reversible multifocal type
Reexamination Certificate

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Multifocal trial frame system

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Invertible or reversible multifocal type
Patent

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