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John Fisher

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  • Royston, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tonometer apparatus
    • Patent number 4,924,867
    • Issue date May 15, 1990
    • Keeler Limited
    • James R. A. Matthews
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Calibration method and apparatus for tonometers
    • Patent number 4,834,105
    • Issue date May 30, 1989
    • Keeler Limited
    • James R. A. Matthews
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Tonometer
    • Patent number 4,724,843
    • Issue date Feb 16, 1988
    • Keeler Limited
    • John Fisher
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE