2489858

Information

• Patent Grant
• 2489858

• References
• Source

• Patent Number

  2,489,858

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1949
  75 years ago

• CPC

  • B23K11/248 - Electric supplies using discharge tubes
  • H02M1/042 - wherein the phase of the control voltage is adjustable with reference to the AC voltage

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 323 - Electricity: power supply or regulation systems