2215552

Information

• Patent Grant
• 2215552

• References
• Source

• Patent Number

  2,215,552

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1940
  84 years ago

• CPC

  • G04B19/24366 - driven or released stepwise by the clockwork movement

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 968 - Horology