TREA

John D. Bradbrook

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  • Royston, Hertfordshire, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Zoom lens for cameras
    • Patent number 4,541,695
    • Issue date Sep 17, 1985
    • Establissements Pierre Angenieux SA
    • Ronald C. Wainwright
    • G02 - OPTICS
  • Information Patent Grant

    Information storage and retrieval
    • Patent number 4,522,482
    • Issue date Jun 11, 1985
    • Comtech Research
    • Robert M. Pettigrew
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Optical data storage
    • Patent number 4,486,870
    • Issue date Dec 4, 1984
    • Robert M. Pettigrew
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Distance measuring gauge
    • Patent number 4,215,480
    • Issue date Aug 5, 1980
    • James Neill Holdings Limited
    • John H. Fisher
    • G01 - MEASURING TESTING