4. Measuring and testing
  5. Vibration
  6. By mechanical waves

Steven E. Feldon

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Applanation tonometer

Surgery – Diagnostic testing – Testing aqueous humor pressure or related condition
Reexamination Certificate

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Digital ultrasonic instrument for ophthalmic use

Measuring and testing – Vibration – By mechanical waves
Patent

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Electronic documentation system for generating written reports

Patent

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Electronic tonometer with baseline nulling system

Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent

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Keratometer

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

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Profile ID: LFUS-PAI-P-324450

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