TREA

John Krueger

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  • Munich, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Microfilm reader
    • Patent number 4,244,641
    • Issue date Jan 13, 1981
    • AGFA-Gevaert, A.G.
    • Wilfried Hofmann
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Collapsible microfilm reader
    • Patent number 4,131,348
    • Issue date Dec 26, 1978
    • AGFA-Gevaert AG
    • Wilfried Hofmann
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Portable microfilm reader
    • Patent number 4,120,574
    • Issue date Oct 17, 1978
    • Agfa-Gevaert Aktiengesellschaft
    • Wilfried Hofmann
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY