1940220

Information

• Patent Grant
• 1940220

• References
• Source

• Patent Number

  1,940,220

• Date Filed

  Not available

• Date Issued

  Tuesday, December 19, 1933
  91 years ago

• CPC

  • B23B51/0493 - with exchangeable cutting inserts
  • B23B41/02 - for boring deep holes Trepanning
  • B23B2251/422 - Deep hole drills
  • B23B2251/603 - Detachable pilots
  • Y10T408/455 - Conducting channel extending to end of Tool
  • Y10T408/62 - Coaxial
  • Y10T408/906 - Axially spaced

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool