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  • CPC
  • G03B21/34
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GPHYSICS G03Photography G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES ACCESSORIES THEREFOR G03B21/00Projectors or projection-type viewers Accessories therefor

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G03B21/34Change-over arrangements
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Patents Grantslast 30 patents

  • Information Patent Grant

    High efficiency motion blur reduction
    • Patent number 10,372,023
    • Issue date Aug 6, 2019
    • The Boeing Company
    • Harold R. Streid
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Display control circuit and projector apparatus
    • Patent number 8,673,033
    • Issue date Mar 18, 2014
    • Sony Corporation
    • Yoshikazu Komatsu
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Method of remotely controlling a presentation to freeze an image us...
    • Patent number 8,581,931
    • Issue date Nov 12, 2013
    • BlackBerry Limited
    • Rakesh Kumar Arora
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Vertical platter system for dividing a 35 mm cinematographic film a...
    • Patent number 7,277,154
    • Issue date Oct 2, 2007
    • Tecnoprojet, S.L.
    • Josep Maria Queralto Bonell
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    3640611
    • Patent number 3,640,611
    • Issue date Feb 8, 1972
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2676272
    • Patent number 2,676,272
    • Issue date Apr 20, 1954
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2138479
    • Patent number 2,138,479
    • Issue date Nov 29, 1938
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2138478
    • Patent number 2,138,478
    • Issue date Nov 29, 1938
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2125903
    • Patent number 2,125,903
    • Issue date Aug 9, 1938
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2036306
    • Patent number 2,036,306
    • Issue date Apr 7, 1936
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2021181
    • Patent number 2,021,181
    • Issue date Nov 19, 1935
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2013021
    • Patent number 2,013,021
    • Issue date Sep 3, 1935
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    1972904
    • Patent number 1,972,904
    • Issue date Sep 11, 1934
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    1814217
    • Patent number 1,814,217
    • Issue date Jul 14, 1931
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents