148636

Information

• Patent Grant
• 148636

• References
• Source

• Patent Number

  148,636

• Date Filed

  Not available

• Date Issued

  Tuesday, March 17, 1874
  151 years ago

• CPC

  • G04B9/025 - Acoustical or electrical indicating means

• US Classifications

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