388186

Information

• Patent Grant
• 388186

• References
• Source

• Patent Number

  388,186

• Date Filed

  Not available

• Date Issued

  Tuesday, August 21, 1888
  136 years ago

• CPC

  • G04B3/04 - Rigidly-mounted keys, knobs or crowns
  • G04B37/0008 - for pocket watches and wrist watches
  • G04B37/062 - Means for preventing the winding stem from being pulled out too far

• US Classifications

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