2108931

Information

• Patent Grant
• 2108931

• References
• Source

• Patent Number

  2,108,931

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1938
  86 years ago

• CPC

  • G04C15/0054 - with power-reserve

• US Classifications

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