TREA

Movable screens

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Industry

  • CPC
  • H01J2893/0055
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Parent Industries

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J2893/00Discharge tubes and lamps

Current Industry

H01J2893/0055Movable screens
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    2179673
    • Patent number 2,179,673
    • Issue date Nov 14, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2162478
    • Patent number 2,162,478
    • Issue date Jun 13, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2053930
    • Patent number 2,053,930
    • Issue date Sep 8, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1997831
    • Patent number 1,997,831
    • Issue date Apr 16, 1935
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1997986
    • Patent number 1,997,986
    • Issue date Apr 16, 1935
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1923335
    • Patent number 1,923,335
    • Issue date Aug 22, 1933
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1816168
    • Patent number 1,816,168
    • Issue date Jul 28, 1931
    • H01 - BASIC ELECTRIC ELEMENTS