William E. Humphrey

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Apparatus for locating inter-pupilary of nose bridge mounted spe

Geometrical instruments – Gauge – Spectacle
Patent

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Elastically compensated off-axis mirror

Patent

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Eye test apparatus with physician routed patient input adjustmen

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

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Field tester

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

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Fundus camera

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

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Profile ID: LFUS-PAI-P-302960

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