2138535

Information

• Patent Grant
• 2138535

• References
• Source

• Patent Number

  2,138,535

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1938
  86 years ago

• CPC

  • B24B5/04 - for grinding cylindrical surfaces externally
  • Y10S451/901 - Super finish
  • Y10T82/2554 - Speed changing gear

• US Classifications

  • 451 - Abrading
  • 082 - Turning