209457

Information

• Patent Grant
• 209457

• References
• Source

• Patent Number

  209,457

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1878
  146 years ago

• CPC

  • G04B11/022 - with a ratchet which makes contact with the rotating member by means of teeth

• US Classifications

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