1438427

Information

• Patent Grant
• 1438427

• References
• Source

• Patent Number

  1,438,427

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1922
  102 years ago

• CPC

  • G04B27/04 - with clutch wheel
  • G04B27/06 - with rocking bar
  • G04B37/05 - Fixed mountings for pocket or wrist watches
  • G04B37/066 - Divided stem (tige brisee)

• US Classifications

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