2231849

Information

• Patent Grant
• 2231849

• References
• Source

• Patent Number

  2,231,849

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1941
  84 years ago

• CPC

  • G04D7/1285 - whereby the adjustment device works on the mainspring

• US Classifications

  • 073 - Measuring and testing
  • 250 - Radiant energy
  • 968 - Horology