TREA

by Laurence P. Ross executor

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  • Elstree, Herts., GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ribbon transducers
    • Patent number 5,243,150
    • Issue date Sep 7, 1993
    • Graham Bank
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Ribbon transducers
    • Patent number 5,148,888
    • Issue date Sep 22, 1992
    • Graham Bank
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE