2688521

Information

• Patent Grant
• 2688521

• References
• Source

• Patent Number

  2,688,521

• Date Filed

  Not available

• Date Issued

  Tuesday, September 7, 1954
  70 years ago

• CPC

  • G04B31/0123 - with metallic ball bearings and metallic roller bearings
  • F16C33/78 - with a diaphragm, disc, or ring, with or without resilient members

• US Classifications

  • 384 - Bearings
  • 968 - Horology