391886

Information

• Patent Grant
• 391886

• References
• Source

• Patent Number

  391,886

• Date Filed

  Not available

• Date Issued

  Tuesday, October 30, 1888
  136 years ago

• CPC

  • G04B1/24 - with both mainsprings and driving weights

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 185 - Motors: spring, weight, or animal powered
  • 968 - Horology