490698

Information

• Patent Grant
• 490698

• References
• Source

• Patent Number

  490,698

• Date Filed

  Not available

• Date Issued

  Tuesday, January 31, 1893
  132 years ago

• CPC

  • G04C13/0481 - by switching on an electromagnetic driving device

• US Classifications

  • 368 - Horology: time measuring systems or devices