having two electrodes at an angle

Industry

  • CPC
  • H05B31/40
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Patents Grantslast 30 patents

  • Information Patent Grant

    2240297

    • Patent number 2,240,297
    • Issue date Apr 29, 1941
    • F21 - LIGHTING
  • Information Patent Grant

    2224077

    • Patent number 2,224,077
    • Issue date Dec 3, 1940
    • F21 - LIGHTING
  • Information Patent Grant

    2137103

    • Patent number 2,137,103
    • Issue date Nov 15, 1938
    • F21 - LIGHTING

Patents Applicationslast 30 patents