3400510

Information

• Patent Grant
• 3400510

• References
• Source

• Patent Number

  3,400,510

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1968
  56 years ago

• CPC

  • 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