2031224

Information

• Patent Grant
• 2031224

• References
• Source

• Patent Number

  2,031,224

• Date Filed

  Not available

• Date Issued

  Tuesday, February 18, 1936
  88 years ago

• CPC

  • H03B5/28 - active element in amplifier being vacuum tube
  • H03B5/16 - active element in amplifier being vacuum tube

• US Classifications

  • 331 - Oscillators