TREA

Cylindrical, helical or annular grids

Follow

Industry

  • CPC
  • H01J2893/0017
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J2893/00Discharge tubes and lamps

Current Industry

H01J2893/0017Cylindrical, helical or annular grids
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Grid for an electronic tube
    • Patent number 3,995,188
    • Issue date Nov 30, 1976
    • Thomson-CSF
    • Pierre Gerlach
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Cylindric grid electrode structure for electronic tubes comprising...
    • Patent number 3,971,964
    • Issue date Jul 27, 1976
    • BBC Brown Boveri & Company Limited
    • Julius Slosiar
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3806754
    • Patent number 3,806,754
    • Issue date Apr 23, 1974
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3758810
    • Patent number 3,758,810
    • Issue date Sep 11, 1973
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3683229
    • Patent number 3,683,229
    • Issue date Aug 8, 1972
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3531839
    • Patent number 3,531,839
    • Issue date Oct 6, 1970
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3465400
    • Patent number 3,465,400
    • Issue date Sep 9, 1969
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3337933
    • Patent number 3,337,933
    • Issue date Aug 29, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3316438
    • Patent number 3,316,438
    • Issue date Apr 25, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3305748
    • Patent number 3,305,748
    • Issue date Feb 21, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3253181
    • Patent number 3,253,181
    • Issue date May 24, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3217202
    • Patent number 3,217,202
    • Issue date Nov 9, 1965
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3041495
    • Patent number 3,041,495
    • Issue date Jun 26, 1962
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2946915
    • Patent number 2,946,915
    • Issue date Jul 26, 1960
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2932759
    • Patent number 2,932,759
    • Issue date Apr 12, 1960
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2821651
    • Patent number 2,821,651
    • Issue date Jan 28, 1958
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1947514
    • Patent number 1,947,514
    • Issue date Feb 20, 1934
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents