2749441

Information

• Patent Grant
• 2749441

• References
• Source

• Patent Number

  2,749,441

• Date Filed

  Not available

• Date Issued

  Tuesday, June 5, 1956
  70 years ago

• CPC

  • H03B5/22 - active element in amplifier being vacuum tube

• US Classifications

  • 331 - Oscillators
  • 330 - Amplifiers