3877215

Information

• Patent Grant
• 3877215

• References
• Source

• Patent Number

  3,877,215

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1975
  49 years ago

• CPC

  • G04B17/025 - Composite and multiple pendulums; Synchronisation of mechanical pendulums
  • G04C3/107 - Controlling frequency or amplitude of the oscillating system
  • G04C11/084 - acting on the balance

• US Classifications

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