1169406

Information

• Patent Grant
• 1169406

• References
• Source

• Patent Number

  1,169,406

• Date Filed

  Not available

• Date Issued

  Tuesday, January 25, 1916
  108 years ago

• CPC

  • B23B51/108 - having a centering twist drill
  • Y10T408/8734 - including central Tool axially movable relative to support

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool