2501857

Information

• Patent Grant
• 2501857

• References
• Source

• Patent Number

  2,501,857

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1950
  74 years ago

• CPC

  • H03K4/34 - using a single tube with positive feedback through a transformer

• US Classifications

  • 315 - Electric lamp and discharge devices: systems