2348874

Information

• Patent Grant
• 2348874

• References
• Source

• Patent Number

  2,348,874

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1944
  80 years ago

• CPC

  • B23B51/02 - Twist drills
  • B23B51/06 - Drills with lubricating or cooling equipment
  • B23B2251/443 - Double margin drills
  • Y10T408/45 - including Tool with duct
  • Y10T408/9097 - Spiral channel

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 076 - Metal tools and implements, making