2787868

Information

• Patent Grant
• 2787868

• References
• Source

• Patent Number

  2,787,868

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1957
  68 years ago

• CPC

  • B24B3/28 - by swivelling the drill around an axis angularly to the drill axis
  • Y10T408/26 - with means to condition tool

• US Classifications

  • 451 - Abrading
  • 408 - Cutting by use of rotating axially moving tool
  • 470 - Threaded, headed fastener, or washer making: process and apparatus