308521

Information

• Patent Grant
• 308521

• References
• Source

• Patent Number

  308,521

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1884
  140 years ago

• CPC

  • G04C13/028 - transmission systems for synchronisation of pendulum of slave-clocks by pendulums of master-clocks

• US Classifications

  • 368 - Horology: time measuring systems or devices