TREA

Harold Wieder

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  • Saratoga, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical recording medium
    • Patent number 4,477,819
    • Issue date Oct 16, 1984
    • International Business Machines Corporation
    • Michael H. Lee
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Photoconductor for GaAs laser addressed devices
    • Patent number 4,147,667
    • Issue date Apr 3, 1979
    • International Business Machines Corporation
    • Jacques P. Chevallier
    • H01 - BASIC ELECTRIC ELEMENTS