1328247

Information

• Patent Grant
• 1328247

• References
• Source

• Patent Number

  1,328,247

• Date Filed

  Not available

• Date Issued

  Tuesday, January 13, 1920
  105 years ago

• CPC

  • G04C15/0081 - Automatic stabilisation of net frequency with regard to time
  • G04C13/027 - master-slave systems using transmission of other driving signals

• US Classifications

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