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  • CPC
  • H01J31/62
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Patents Grantslast 30 patents

  • Information Patent Grant

    3111601

    • Patent number 3,111,601
    • Issue date Nov 19, 1963
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3054961

    • Patent number 3,054,961
    • Issue date Sep 18, 1962
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3046440

    • Patent number 3,046,440
    • Issue date Jul 24, 1962
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2988668

    • Patent number 2,988,668
    • Issue date Jun 13, 1961
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    2965783

    • Patent number 2,965,783
    • Issue date Dec 20, 1960
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2945142

    • Patent number 2,945,142
    • Issue date Jul 12, 1960
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    2918600

    • Patent number 2,918,600
    • Issue date Dec 22, 1959
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2863089

    • Patent number 2,863,089
    • Issue date Dec 2, 1958
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2862140

    • Patent number 2,862,140
    • Issue date Nov 25, 1958
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2851626

    • Patent number 2,851,626
    • Issue date Sep 9, 1958
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2839679

    • Patent number 2,839,679
    • Issue date Jun 17, 1958
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2821653

    • Patent number 2,821,653
    • Issue date Jan 28, 1958
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    2813998

    • Patent number 2,813,998
    • Issue date Nov 19, 1957
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2808526

    • Patent number 2,808,526
    • Issue date Oct 1, 1957
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2787777

    • Patent number 2,787,777
    • Issue date Apr 2, 1957
    • B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • Information Patent Grant

    2733423

    • Patent number 2,733,423
    • Issue date Jan 31, 1956
    • B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • Information Patent Grant

    2667635

    • Patent number 2,667,635
    • Issue date Jan 26, 1954
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2618763

    • Patent number 2,618,763
    • Issue date Nov 18, 1952
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2618762

    • Patent number 2,618,762
    • Issue date Nov 18, 1952
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2617963

    • Patent number 2,617,963
    • Issue date Nov 11, 1952
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2601452

    • Patent number 2,601,452
    • Issue date Jun 24, 1952
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2563500

    • Patent number 2,563,500
    • Issue date Aug 7, 1951
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2500633

    • Patent number 2,500,633
    • Issue date Mar 14, 1950
    • G02 - OPTICS
  • Information Patent Grant

    2481458

    • Patent number 2,481,458
    • Issue date Sep 6, 1949
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2464420

    • Patent number 2,464,420
    • Issue date Mar 15, 1949
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2454652

    • Patent number 2,454,652
    • Issue date Nov 23, 1948
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2416914

    • Patent number 2,416,914
    • Issue date Mar 4, 1947
    • G01 - MEASURING TESTING