using two tubes so coupled that the input of each one is derived from the output of the other

Patents Grantslast 30 patents

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    3377569

    • Patent number 3,377,569
    • Issue date Apr 9, 1968
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
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    3141142

    • Patent number 3,141,142
    • Issue date Jul 14, 1964
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
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    3136951

    • Patent number 3,136,951
    • Issue date Jun 9, 1964
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
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    3088047

    • Patent number 3,088,047
    • Issue date Apr 30, 1963
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
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    3002153

    • Patent number 3,002,153
    • Issue date Sep 26, 1961
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2929958

    • Patent number 2,929,958
    • Issue date Mar 22, 1960
    • G01 - MEASURING TESTING
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    2900502

    • Patent number 2,900,502
    • Issue date Aug 18, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
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    2896081

    • Patent number 2,896,081
    • Issue date Jul 21, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
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    2874291

    • Patent number 2,874,291
    • Issue date Feb 17, 1959
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2871354

    • Patent number 2,871,354
    • Issue date Jan 27, 1959
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2834885

    • Patent number 2,834,885
    • Issue date May 13, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
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    2833919

    • Patent number 2,833,919
    • Issue date May 6, 1958
    • G01 - MEASURING TESTING
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    2812438

    • Patent number 2,812,438
    • Issue date Nov 5, 1957
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2789225

    • Patent number 2,789,225
    • Issue date Apr 16, 1957
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2787727

    • Patent number 2,787,727
    • Issue date Apr 2, 1957
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
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    2605406

    • Patent number 2,605,406
    • Issue date Jul 29, 1952
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2553752

    • Patent number 2,553,752
    • Issue date May 22, 1951
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2552303

    • Patent number 2,552,303
    • Issue date May 8, 1951
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2540478

    • Patent number 2,540,478
    • Issue date Feb 6, 1951
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2536822

    • Patent number 2,536,822
    • Issue date Jan 2, 1951
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2509433

    • Patent number 2,509,433
    • Issue date May 30, 1950
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2500788

    • Patent number 2,500,788
    • Issue date Mar 14, 1950
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2458367

    • Patent number 2,458,367
    • Issue date Jan 4, 1949
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2440252

    • Patent number 2,440,252
    • Issue date Apr 27, 1948
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2418826

    • Patent number 2,418,826
    • Issue date Apr 15, 1947
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2418825

    • Patent number 2,418,825
    • Issue date Apr 15, 1947
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2416292

    • Patent number 2,416,292
    • Issue date Feb 25, 1947
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2282895

    • Patent number 2,282,895
    • Issue date May 12, 1942
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2241619

    • Patent number 2,241,619
    • Issue date May 13, 1941
    • H03 - BASIC ELECTRONIC CIRCUITRY
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    2195972

    • Patent number 2,195,972
    • Issue date Apr 2, 1940
    • H03 - BASIC ELECTRONIC CIRCUITRY