3663894

Information

• Patent Grant
• 3663894

• References
• Source

• Patent Number

  3,663,894

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1972
  52 years ago

• CPC

  • G04F5/04 - using oscillators with electromechanical resonators producing electric oscillations or timing pulses
  • G04C3/108 - Driving circuits

• US Classifications

  • 331 - Oscillators
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology