4. Machine element or mechanism
  5. Gearing
  6. Plural power paths to and/or from gearing

David A. Wallace

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Digital ultrasonic instrument for ophthalmic use

Measuring and testing – Vibration – By mechanical waves
Patent

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Dual hydrostatic drive transmission

Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
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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Memory addressing arrangement

Boots – shoes – and leggings
Patent

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Profile ID: LFUS-PAI-P-312055

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