2170408

Information

• Patent Grant
• 2170408

• References
• Source

• Patent Number

  2,170,408

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1939
  84 years ago

• CPC

  • G04B19/2575 - driven or released stepwise by the clockwork movement

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology