461828

Information

• Patent Grant
• 461828

• References
• Source

• Patent Number

  461,828

• Date Filed

  Not available

• Date Issued

  Tuesday, October 27, 1891
  133 years ago

• CPC

  • B24B5/04 - for grinding cylindrical surfaces externally
  • Y10S451/906 - Machine element or unit

• US Classifications

  • 451 - Abrading