588331

Information

• Patent Grant
• 588331

• References
• Source

• Patent Number

  588,331

• Date Filed

  Not available

• Date Issued

  Tuesday, August 17, 1897
  127 years ago

• CPC

  • G04B9/025 - Acoustical or electrical indicating means

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 116 - Signals and indicators
  • 968 - Horology