441443

Information

• Patent Grant
• 441443

• References
• Source

• Patent Number

  441,443

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1890
  133 years ago

• CPC

  • G04B19/2434 - driven or released by their own energy source which is released at regular time intervals
  • G04B19/205 - by means of sheets

• US Classifications

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