3573658

Information

• Patent Grant
• 3573658

• References
• Source

• Patent Number

  3,573,658

• Date Filed

  Not available

• Date Issued

  Tuesday, April 6, 1971
  53 years ago

• CPC

  • H03B5/1835 - the active element in the amplifier being a vacuum tube

• US Classifications

  • 331 - Oscillators