857668

Information

• Patent Grant
• 857668

• References
• Source

• Patent Number

  857,668

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1907
  117 years ago

• CPC

  • G04B11/003 - with friction member

• US Classifications

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