4. Optics: eye examining, vision testing and correcting
  5. Eye examining or testing instrument
  6. Methods of use

Edward N. Pugh, Jr.

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Method of using polarization differencing to improve vision

Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Methods of use
Patent

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Polarization and reflection based non-contact latent...

Optics: measuring and testing – Document pattern analysis or verification
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1858049

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