2669887

Information

• Patent Grant
• 2669887

• References
• Source

• Patent Number

  2,669,887

• Date Filed

  Not available

• Date Issued

  Tuesday, February 23, 1954
  71 years ago

• CPC

  • B23B51/107 - having a pilot
  • B23B41/00 - Boring or drilling machines or devices specially adapted for particular work Accessories specially adapted therefor
  • Y10T408/5622 - Plural, coaxially opposing, work-engaging means

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener