3540208

Information

• Patent Grant
• 3540208

• References
• Source

• Patent Number

  3,540,208

• Date Filed

  Not available

• Date Issued

  Tuesday, November 17, 1970
  54 years ago

• CPC

  • G04B19/02 - Back-gearing arrangements between gear train and hands
  • G04B1/26 - driven by liquids or gases Liquid or gaseous drives for mechanically-controlled secondary clocks
  • G04B17/005 - Regulating mechanisms where the movement is maintained by pneumatic means

• US Classifications

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