4. Geometrical instruments
  5. Gauge
  6. Spectacle

Humphrey Instruments Incorporated

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Apparatus for locating inter-pupilary of nose bridge mounted spe

Geometrical instruments – Gauge – Spectacle
Patent

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Method for aligning an eye examination instrument with the eye u

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

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Perimeter with non spherical bowl

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

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Spectrometer for lensometer

Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent

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Profile ID: LFUS-PAI-P-468406

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