3557879

Information

• Patent Grant
• 3557879

• References
• Source

• Patent Number

  3,557,879

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1971
  54 years ago

• CPC

  • A01B13/02 - for making or working ridges
  • A01B33/08 - Tools Details
  • A01B33/082 - Transmissions; Gearings; Power distribution
  • A01B33/142 - the rotating shaft being oriented horizontally
  • F16H3/02 - without gears having orbital motion
  • F16H2714/00 - Different types speed-changing mechanisms for toothed gearing

• US Classifications

  • 172 - Earth working
  • 037 - Excavating