2188169

Information

• Patent Grant
• 2188169

• References
• Source

• Patent Number

  2,188,169

• Date Filed

  Not available

• Date Issued

  Tuesday, January 23, 1940
  85 years ago

• CPC

  • G04C15/0054 - with power-reserve

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 310 - Electrical generator or motor structure
  • 968 - Horology