238856

Information

• Patent Grant
• 238856

• References
• Source

• Patent Number

  238,856

• Date Filed

  Not available

• Date Issued

  Tuesday, March 15, 1881
  144 years ago

• CPC

  • G04B37/088 - Means affording hermetic sealing inside the case
  • G04B27/04 - with clutch wheel
  • G04B37/062 - Means for preventing the winding stem from being pulled out too far

• US Classifications

  • 368 - Horology: time measuring systems or devices