2151317

Information

• Patent Grant
• 2151317

• References
• Source

• Patent Number

  2,151,317

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1939
  86 years ago

• CPC

  • G04C15/0081 - Automatic stabilisation of net frequency with regard to time

• US Classifications

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