4. Optics: eye examining, vision testing and correcting
  5. Eye examining or testing instrument
  6. Objective type

Joseph Zelvin

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Illuminated ring keratometer device

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

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Retinal imaging system

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

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Retinal imaging system

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

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Profile ID: LFUS-PAI-P-1650508

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