3747331

Information

• Patent Grant
• 3747331

• References
• Source

• Patent Number

  3,747,331

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1973
  51 years ago

• CPC

  • G04B47/00 - Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
  • G04C21/18 - by mechanically unlocking an electro-mechanical vibrator
  • G08B17/06 - Electric actuation of the alarm

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 116 - Signals and indicators
  • 968 - Horology