218206

Information

• Patent Grant
• 218206

• References
• Source

• Patent Number

  218,206

• Date Filed

  Not available

• Date Issued

  Tuesday, August 5, 1879
  145 years ago

• CPC

  • G04B1/185 - Friction clutch between spring and spring cylinder

• US Classifications

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