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  • CPC
  • Y10S454/905
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YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS Y10USPC classification Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS Y10S454/00Ventilation

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Y10S454/905Black out means
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Patents Grantslast 30 patents

  • Information Patent Grant

    Louver configuration for welding apparatus
    • Patent number 6,814,659
    • Issue date Nov 9, 2004
    • Illinois Tool Works Inc.
    • James J. Cigelske
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Air vent apparatus for blocking light
    • Patent number 6,508,704
    • Issue date Jan 21, 2003
    • InFocus Systems, Inc.
    • Clark Wilson
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Method and apparatus for an air vent assembly
    • Patent number 6,475,079
    • Issue date Nov 5, 2002
    • InFocus Corporation
    • Gary Basey
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Light eliminator for poultry house
    • Patent number 5,238,451
    • Issue date Aug 24, 1993
    • Wulf; Fred A.
    • Fred A. Wulf
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Light restricting housing for a ventilation system
    • Patent number 5,133,692
    • Issue date Jul 28, 1992
    • Emerson Electric Co.
    • Edward N. Koop
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    3628442
    • Patent number 3,628,442
    • Issue date Dec 21, 1971
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    3332335
    • Patent number 3,332,335
    • Issue date Jul 25, 1967
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    3285156
    • Patent number 3,285,156
    • Issue date Nov 15, 1966
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    3056343
    • Patent number 3,056,343
    • Issue date Oct 2, 1962
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    2885940
    • Patent number 2,885,940
    • Issue date May 12, 1959
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    2856840
    • Patent number 2,856,840
    • Issue date Oct 21, 1958
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    2309255
    • Patent number 2,309,255
    • Issue date Jan 26, 1943
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    1703437
    • Patent number 1,703,437
    • Issue date Feb 26, 1929
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    1677910
    • Patent number 1,677,910
    • Issue date Jul 24, 1928
    • F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents