2230509

Information

• Patent Grant
• 2230509

• References
• Source

• Patent Number

  2,230,509

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1941
  84 years ago

• CPC

  • B23B41/06 - for boring conical holes
  • Y10T82/125 - Tool simultaneously moving axially

• US Classifications

  • 082 - Turning
  • 033 - Geometrical instruments