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Instrument flight simulation view limiting device

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Patent

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Integrally formed two-piece eyeshield

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Patent

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Integrated reading lenses for sunglasses

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Reexamination Certificate

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Interchangeable eyeglass lens system

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Reexamination Certificate

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Interchangeable lens eyeglasses with pivoting temple release mec

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Patent

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Interchangeable spectacles and sunshade clip assembly

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Reexamination Certificate

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Interlockable magnetic shelter frame for spectacle frame

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Patent

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