TREA

Peter H. Grunwald

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  • 6070 Langen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Overhead projector
    • Patent number 4,735,500
    • Issue date Apr 5, 1988
    • Peter H. Grunwald
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Overhead projector
    • Patent number 4,652,101
    • Issue date Mar 24, 1987
    • Peter H. Grunwald
    • G02 - OPTICS
  • Information Patent Grant

    Overhead projector
    • Patent number 4,565,430
    • Issue date Jan 21, 1986
    • Peter H. Grunwald
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY