for converters using only discharge tubes

Patents Grantslast 30 patents

  • Information Patent Grant

    3649901

    • Patent number 3,649,901
    • Issue date Mar 14, 1972
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3621364

    • Patent number 3,621,364
    • Issue date Nov 16, 1971
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3310707

    • Patent number 3,310,707
    • Issue date Mar 21, 1967
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3296492

    • Patent number 3,296,492
    • Issue date Jan 3, 1967
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3247501

    • Patent number 3,247,501
    • Issue date Apr 19, 1966
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3239762

    • Patent number 3,239,762
    • Issue date Mar 8, 1966
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3229189

    • Patent number 3,229,189
    • Issue date Jan 11, 1966
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3044005

    • Patent number 3,044,005
    • Issue date Jul 10, 1962
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3011309

    • Patent number 3,011,309
    • Issue date Dec 5, 1961
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    2903637

    • Patent number 2,903,637
    • Issue date Sep 8, 1959
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2857626

    • Patent number 2,857,626
    • Issue date Oct 28, 1958
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    2846648

    • Patent number 2,846,648
    • Issue date Aug 5, 1958
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2833977

    • Patent number 2,833,977
    • Issue date May 6, 1958
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2820178

    • Patent number 2,820,178
    • Issue date Jan 14, 1958
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    2807771

    • Patent number 2,807,771
    • Issue date Sep 24, 1957
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2757330

    • Patent number 2,757,330
    • Issue date Jul 31, 1956
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2741527

    • Patent number 2,741,527
    • Issue date Apr 10, 1956
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2740083

    • Patent number 2,740,083
    • Issue date Mar 27, 1956
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2730638

    • Patent number 2,730,638
    • Issue date Jan 10, 1956
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    2693566

    • Patent number 2,693,566
    • Issue date Nov 2, 1954
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2684460

    • Patent number 2,684,460
    • Issue date Jul 20, 1954
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2680212

    • Patent number 2,680,212
    • Issue date Jun 1, 1954
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2678418

    • Patent number 2,678,418
    • Issue date May 11, 1954
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2587276

    • Patent number 2,587,276
    • Issue date Feb 26, 1952
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2550460

    • Patent number 2,550,460
    • Issue date Apr 24, 1951
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2534899

    • Patent number 2,534,899
    • Issue date Dec 19, 1950
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2534036

    • Patent number 2,534,036
    • Issue date Dec 12, 1950
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2532108

    • Patent number 2,532,108
    • Issue date Nov 28, 1950
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2510616

    • Patent number 2,510,616
    • Issue date Jun 6, 1950
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2503405

    • Patent number 2,503,405
    • Issue date Apr 11, 1950
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER