770480

Information

• Patent Grant
• 770480

• References
• Source

• Patent Number

  770,480

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1904
  120 years ago

• CPC

  • B23B51/02 - Twist drills
  • B23B2251/406 - of special form not otherwise provided for
  • Y10T408/898 - Helical ribbon Tool
  • Y10T408/902 - Having central lead-screw

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool