273138

Information

• Patent Grant
• 273138

• References
• Source

• Patent Number

  273,138

• Date Filed

  Not available

• Date Issued

  Tuesday, February 27, 1883
  142 years ago

• CPC

  • G04B18/06 - by setting the collet or the stud of a hairspring

• US Classifications

  • 368 - Horology: time measuring systems or devices