3659143

Information

• Patent Grant
• 3659143

• References
• Source

• Patent Number

  3,659,143

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1972
  52 years ago

• CPC

  • H03F1/546 - Delaying application of anode power supply with respect to application of filament heating power supply
  • H03K17/28 - Modifications for introducing a time delay before switching

• US Classifications

  • 315 - Electric lamp and discharge devices: systems