TREA

David Appleby

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  • Northampton, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pyroelectric detectors
    • Patent number 4,284,888
    • Issue date Aug 18, 1981
    • Plessey Handel und Investments AG
    • David Appleby
    • G08 - SIGNALLING
  • Information Patent Grant

    Pyroelectric detectors
    • Patent number 4,110,616
    • Issue date Aug 29, 1978
    • Plessey Handel und Investments A.G.
    • Stephen G. Porter
    • G01 - MEASURING TESTING