2566940

Information

• Patent Grant
• 2566940

• References
• Source

• Patent Number

  2,566,940

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1951
  73 years ago

• CPC

  • G04C11/002 - by changing the driving speed

• US Classifications

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