1989410

Information

• Patent Grant
• 1989410

• References
• Source

• Patent Number

  1,989,410

• Date Filed

  Not available

• Date Issued

  Tuesday, January 29, 1935
  90 years ago

• CPC

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

• US Classifications

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