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Rolf Crema

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  • Ehringshausen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lens testing device
    • Patent number 6,346,981
    • Issue date Feb 12, 2002
    • Leica Camera AG
    • Peter Karbe
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Lens hood for a photographic lens
    • Patent number 5,126,881
    • Issue date Jun 30, 1992
    • Leica Camera GmbH
    • Rolf Crema
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Device for adjustment of the viewfinder eyepiece of a camera
    • Patent number 4,712,897
    • Issue date Dec 15, 1987
    • Ernst Leitz Wetzlar GmbH
    • Rolf Crema
    • G02 - OPTICS
  • Information Patent Grant

    Film advance mechanism
    • Patent number 4,711,545
    • Issue date Dec 8, 1987
    • Ernst Leitz Wetzlar GmbH
    • Rolf Crema
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY