152422

Information

• Patent Grant
• 152422

• References
• Source

• Patent Number

  152,422

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1874
  150 years ago

• CPC

  • B23B49/06 - Devices for drilling holes in brake bands or brake linings
  • Y10T408/26 - with means to condition tool

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 451 - Abrading