2195972

Information

• Patent Grant
• 2195972

• References
• Source

• Patent Number

  2,195,972

• Date Filed

  Not available

• Date Issued

  Tuesday, April 2, 1940
  84 years ago

• CPC

  • H03K4/14 - using two tubes so coupled that the input of each one is derived from the output of the other

• US Classifications

  • 331 - Oscillators