3474838

Information

• Patent Grant
• 3474838

• References
• Source

• Patent Number

  3,474,838

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1969
  55 years ago

• CPC

  • B27C3/08 - Operator-supported drilling machines or devices
  • Y10T408/902 - Having central lead-screw

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool