3569820

Information

• Patent Grant
• 3569820

• References
• Source

• Patent Number

  3,569,820

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1971
  53 years ago

• CPC

  • H03K17/9512 - using digital techniques
  • B64C25/28 - with indicating or warning devices
  • H01F29/10 - having movable part of magnetic circuit
  • H03K17/9525 - controlled by an oscillatory signal

• US Classifications

  • 340 - Communications: electrical
  • 336 - Inductor devices