357885

Information

• Patent Grant
• 357885

• References
• Source

• Patent Number

  357,885

• Date Filed

  Not available

• Date Issued

  Tuesday, February 15, 1887
  138 years ago

• CPC

  • G04C13/025 - via special lines

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 324 - Electricity: measuring and testing
  • 361 - Electricity: electrical systems and devices