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

Robert Henderson

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Active-pixel image sensors

Television – Camera – system and detail – Combined image signal generator and general image signal...
Reexamination Certificate

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Apparatus for cleaning a swimming pool water filter

Liquid purification or separation – Flow – fluid pressure or material level – responsive – Filter cleaning
Reexamination Certificate

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CMOS image sensors

Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate

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Column current source

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate

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Electromagnetic retarder control apparatus and method

Fluid-pressure and analogous brake systems – Electric control
Patent

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Profile ID: LFUS-PAI-P-910817

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