2951993

Information

• Patent Grant
• 2951993

• References
• Source

• Patent Number

  2,951,993

• Date Filed

  Not available

• Date Issued

  Tuesday, September 6, 1960
  64 years ago

• CPC

  • H03B5/34 - active element in amplifier being vacuum tube

• US Classifications

  • 331 - Oscillators