1800486

Information

• Patent Grant
• 1800486

• References
• Source

• Patent Number

  1,800,486

• Date Filed

  Not available

• Date Issued

  Tuesday, April 14, 1931
  93 years ago

• CPC

  • G04C1/082 - by oscillating movement

• US Classifications

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