208450

Information

• Patent Grant
• 208450

• References
• Source

• Patent Number

  208,450

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1878
  146 years ago

• CPC

  • B23B51/0473 - details about the connection between the driven shaft and the tubular cutting part
  • Y10S408/703 - Trepanning
  • Y10T408/895 - Having axial, core-receiving central portion
  • Y10T408/898 - Helical ribbon Tool

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool