1221020

Information

• Patent Grant
• 1221020

• References
• Source

• Patent Number

  1,221,020

• Date Filed

  Not available

• Date Issued

  Tuesday, April 3, 1917
  107 years ago

• CPC

  • F16C33/41 - comb-shaped
  • F16C19/183 - with two rows at opposite angles
  • F16C33/3893 - with rolling elements with smaller diameter than the load carrying balls
  • F16C33/405 - with two or more juxtaposed cages joined together or interacting with each other
  • Y10T29/49691 - Cage making

• US Classifications

  • 384 - Bearings
  • 029 - Metal working