428676

Information

• Patent Grant
• 428676

• References
• Source

• Patent Number

  428,676

• Date Filed

  Not available

• Date Issued

  Tuesday, May 27, 1890
  134 years ago

• CPC

  • G04C13/06 - Contact devices

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 235 - Registers