2493575

Information

• Patent Grant
• 2493575

• References
• Source

• Patent Number

  2,493,575

• Date Filed

  Not available

• Date Issued

  Tuesday, January 3, 1950
  75 years ago

• CPC

  • H02M1/047 - for ignition at the zero-crossing of voltage or current

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 318 - Electricity: motive power systems
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems