TREA

Tubes with variable amplification factor

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Industry

  • CPC
  • H01J21/12
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Parent Industries

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J21/00Vacuum tubes

Current Industry

H01J21/12Tubes with variable amplification factor
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    2795731
    • Patent number 2,795,731
    • Issue date Jun 11, 1957
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2672573
    • Patent number 2,672,573
    • Issue date Mar 16, 1954
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2530591
    • Patent number 2,530,591
    • Issue date Nov 21, 1950
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2340594
    • Patent number 2,340,594
    • Issue date Feb 1, 1944
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2294298
    • Patent number 2,294,298
    • Issue date Aug 25, 1942
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2293124
    • Patent number 2,293,124
    • Issue date Aug 18, 1942
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2272844
    • Patent number 2,272,844
    • Issue date Feb 10, 1942
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2239388
    • Patent number 2,239,388
    • Issue date Apr 22, 1941
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2214808
    • Patent number 2,214,808
    • Issue date Sep 17, 1940
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2201695
    • Patent number 2,201,695
    • Issue date May 21, 1940
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2190069
    • Patent number 2,190,069
    • Issue date Feb 13, 1940
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2143527
    • Patent number 2,143,527
    • Issue date Jan 10, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2092893
    • Patent number 2,092,893
    • Issue date Sep 14, 1937
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2075202
    • Patent number 2,075,202
    • Issue date Mar 30, 1937
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2048232
    • Patent number 2,048,232
    • Issue date Jul 21, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2048225
    • Patent number 2,048,225
    • Issue date Jul 21, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2048229
    • Patent number 2,048,229
    • Issue date Jul 21, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2048230
    • Patent number 2,048,230
    • Issue date Jul 21, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2048231
    • Patent number 2,048,231
    • Issue date Jul 21, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2048224
    • Patent number 2,048,224
    • Issue date Jul 21, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2048228
    • Patent number 2,048,228
    • Issue date Jul 21, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2048226
    • Patent number 2,048,226
    • Issue date Jul 21, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2048227
    • Patent number 2,048,227
    • Issue date Jul 21, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2041904
    • Patent number 2,041,904
    • Issue date May 26, 1936
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2016760
    • Patent number 2,016,760
    • Issue date Oct 8, 1935
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2008505
    • Patent number 2,008,505
    • Issue date Jul 16, 1935
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1839904
    • Patent number 1,839,904
    • Issue date Jan 5, 1932
    • H01 - BASIC ELECTRIC ELEMENTS