863725

Information

• Patent Grant
• 863725

• References
• Source

• Patent Number

  863,725

• Date Filed

  Not available

• Date Issued

  Tuesday, August 20, 1907
  118 years ago

• CPC

  • G04B33/14 - Calibers of which the mainsprings or barrels are easily removable

• US Classifications

  • 368 - Horology: time measuring systems or devices