2370706

Information

• Patent Grant
• 2370706

• References
• Source

• Patent Number

  2,370,706

• Date Filed

  Not available

• Date Issued

  Tuesday, March 6, 1945
  80 years ago

• CPC

  • B23B51/02 - Twist drills
  • E21B10/445 - percussion type
  • B23B2251/04 - Angles
  • B23B2251/043 - Helix angles
  • B23B2251/241 - Cross sections of the diameter of the drill
  • B23B2251/443 - Double margin drills
  • B23B2251/56 - Guiding pads
  • Y10T408/9097 - Spiral channel

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool