having discharge tubes

Industry

  • CPC
  • H03G7/02
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Patents Grantslast 30 patents

  • Information Patent Grant

    Preamplifier circuit configuration

    • Patent number 10,998,866
    • Issue date May 4, 2021
    • Jack Kay
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Solid state musical instrument amplifier with vacuum tube signal ma...

    • Patent number 5,727,069
    • Issue date Mar 10, 1998
    • Fender Musical Instruments Corporation
    • William E. Hughes
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3725805

    • Patent number 3,725,805
    • Issue date Apr 3, 1973
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3350682

    • Patent number 3,350,682
    • Issue date Oct 31, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3340368

    • Patent number 3,340,368
    • Issue date Sep 5, 1967
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    3339178

    • Patent number 3,339,178
    • Issue date Aug 29, 1967
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    3332017

    • Patent number 3,332,017
    • Issue date Jul 18, 1967
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3305792

    • Patent number 3,305,792
    • Issue date Feb 21, 1967
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3263181

    • Patent number 3,263,181
    • Issue date Jul 26, 1966
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3260957

    • Patent number 3,260,957
    • Issue date Jul 12, 1966
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3247464

    • Patent number 3,247,464
    • Issue date Apr 19, 1966
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3246253

    • Patent number 3,246,253
    • Issue date Apr 12, 1966
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3230470

    • Patent number 3,230,470
    • Issue date Jan 18, 1966
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3215928

    • Patent number 3,215,928
    • Issue date Nov 2, 1965
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3206556

    • Patent number 3,206,556
    • Issue date Sep 14, 1965
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3197712

    • Patent number 3,197,712
    • Issue date Jul 27, 1965
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3187268

    • Patent number 3,187,268
    • Issue date Jun 1, 1965
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3185936

    • Patent number 3,185,936
    • Issue date May 25, 1965
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3138766

    • Patent number 3,138,766
    • Issue date Jun 23, 1964
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3119970

    • Patent number 3,119,970
    • Issue date Jan 28, 1964
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3112462

    • Patent number 3,112,462
    • Issue date Nov 26, 1963
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3112461

    • Patent number 3,112,461
    • Issue date Nov 26, 1963
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3109993

    • Patent number 3,109,993
    • Issue date Nov 5, 1963
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3100873

    • Patent number 3,100,873
    • Issue date Aug 13, 1963
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3074025

    • Patent number 3,074,025
    • Issue date Jan 15, 1963
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3041545

    • Patent number 3,041,545
    • Issue date Jun 26, 1962
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3024408

    • Patent number 3,024,408
    • Issue date Mar 6, 1962
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3015782

    • Patent number 3,015,782
    • Issue date Jan 2, 1962
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3003116

    • Patent number 3,003,116
    • Issue date Oct 3, 1961
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2999210

    • Patent number 2,999,210
    • Issue date Sep 5, 1961
    • H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents