3688490

Information

• Patent Grant
• 3688490

• References
• Source

• Patent Number

  3,688,490

• Date Filed

  Not available

• Date Issued

  Tuesday, September 5, 1972
  52 years ago

• CPC

  • G04B11/00 - Click devices Stop clicks Clutches
  • G04B19/247 - disc-shaped
  • G04B19/25326 - manually corrected at the end of months having less than 31 days

• US Classifications

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