with more than one cathode or anode

Industry

  • CPC
  • H01J17/58
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Patents Grantslast 30 patents

  • Information Patent Grant

    Luminescent panel for color video display and its driving system, a...

    • Patent number 5,629,716
    • Issue date May 13, 1997
    • Matsushita Electronics Corporation
    • Takio Okamoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Double-ended thyratron having at least three grids

    • Patent number 4,293,800
    • Issue date Oct 6, 1981
    • English Electric Valve Company
    • Hugh Menown
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2897402

    • Patent number 2,897,402
    • Issue date Jul 28, 1959
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2273054

    • Patent number 2,273,054
    • Issue date Feb 17, 1942
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2209837

    • Patent number 2,209,837
    • Issue date Jul 30, 1940
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2206271

    • Patent number 2,206,271
    • Issue date Jul 2, 1940
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2201818

    • Patent number 2,201,818
    • Issue date May 21, 1940
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2201817

    • Patent number 2,201,817
    • Issue date May 21, 1940
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2184709

    • Patent number 2,184,709
    • Issue date Dec 26, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2170034

    • Patent number 2,170,034
    • Issue date Aug 22, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2128070

    • Patent number 2,128,070
    • Issue date Aug 23, 1938
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2115147

    • Patent number 2,115,147
    • Issue date Apr 26, 1938
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2094760

    • Patent number 2,094,760
    • Issue date Oct 5, 1937
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2082651

    • Patent number 2,082,651
    • Issue date Jun 1, 1937
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2071057

    • Patent number 2,071,057
    • Issue date Feb 16, 1937
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2053501

    • Patent number 2,053,501
    • Issue date Sep 8, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2011922

    • Patent number 2,011,922
    • Issue date Aug 20, 1935
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1992493

    • Patent number 1,992,493
    • Issue date Feb 26, 1935
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1913427

    • Patent number 1,913,427
    • Issue date Jun 13, 1933
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1889612

    • Patent number 1,889,612
    • Issue date Nov 29, 1932
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1883174

    • Patent number 1,883,174
    • Issue date Oct 18, 1932
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1876991

    • Patent number 1,876,991
    • Issue date Sep 13, 1932
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1873683

    • Patent number 1,873,683
    • Issue date Aug 23, 1932
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1790152

    • Patent number 1,790,152
    • Issue date Jan 27, 1931
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1554720

    • Patent number 1,554,720
    • Issue date Sep 22, 1925
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER