3643424

Information

• Patent Grant
• 3643424

• References
• Source

• Patent Number

  3,643,424

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  52 years ago

• CPC

  • G04B37/08 - Hermetic sealing of openings, joints, passages or slits
  • G04B37/055 - with shock damping means including the winding stem
  • G04B37/081 - Complete encasings for wrist or pocket watches also comprising means for hermetic sealing of the winding stem and crown

• US Classifications

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