2791921

Information

• Patent Grant
• 2791921

• References
• Source

• Patent Number

  2,791,921

• Date Filed

  Not available

• Date Issued

  Tuesday, May 14, 1957
  67 years ago

• CPC

  • B23B41/02 - for boring deep holes Trepanning
  • Y10T82/16098 - with dust or chip handling
  • Y10T82/2527 - having hollow cutter head
  • Y10T82/2547 - Change gears
  • Y10T82/2597 - Center rest

• US Classifications

  • 082 - Turning