2979885

Information

• Patent Grant
• 2979885

• References
• Source

• Patent Number

  2,979,885

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1961
  64 years ago

• CPC

  • G04B23/10 - with pre-signal with repeated signal with changeable intensity of sound
  • Y10T74/116 - Clock train

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 074 - Machine element or mechanism
  • 968 - Horology