P. M. Dzierzynski

Examiner

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Examiner

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Achromatic diffractive optic

Optical: systems and elements – Diffraction – From grating
Patent

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Acuity therapy unit

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

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Adapter for lens retaining ring for use in connection with eye e

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

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Adjustable bows for loupe frame

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Temples
Patent

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Adjustable counterweighted temple pieces for eyeglasses

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Temples
Patent

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Profile ID: LFUS-PAI-P-53423

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