2459278

Information

• Patent Grant
• 2459278

• References
• Source

• Patent Number

  2,459,278

• Date Filed

  Not available

• Date Issued

  Tuesday, January 18, 1949
  76 years ago

• CPC

  • H03K4/39 - using a tube operating as an amplifier

• US Classifications

  • 315 - Electric lamp and discharge devices: systems