3390518

Information

• Patent Grant
• 3390518

• References
• Source

• Patent Number

  3,390,518

• Date Filed

  Not available

• Date Issued

  Tuesday, July 2, 1968
  56 years ago

• CPC

  • G04B23/08 - operating on successive days without resetting operating only once in each 24 hours
  • G04C21/20 - by closing a contact to ring an electro-mechanical alarm

• US Classifications

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