1837833

Information

• Patent Grant
• 1837833

• References
• Source

• Patent Number

  1,837,833

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1931
  93 years ago

• CPC

  • G04C1/085 - by continuously rotating movement

• US Classifications

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