using discharge tubes

Patents Grantslast 30 patents

  • Information Patent Grant

    2389364

    • Patent number 2,389,364
    • Issue date Nov 20, 1945
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2329195

    • Patent number 2,329,195
    • Issue date Sep 14, 1943
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2245869

    • Patent number 2,245,869
    • Issue date Jun 17, 1941
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2234104

    • Patent number 2,234,104
    • Issue date Mar 4, 1941
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2232553

    • Patent number 2,232,553
    • Issue date Feb 18, 1941
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2209232

    • Patent number 2,209,232
    • Issue date Jul 23, 1940
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    2119406

    • Patent number 2,119,406
    • Issue date May 31, 1938
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    1786311

    • Patent number 1,786,311
    • Issue date Dec 23, 1930
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents