2209642

Information

• Patent Grant
• 2209642

• References
• Source

• Patent Number

  2,209,642

• Date Filed

  Not available

• Date Issued

  Tuesday, July 30, 1940
  84 years ago

• CPC

  • G04B19/2534 - driven or released continuously by the clockwork movement

• US Classifications

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