3880244

Information

• Patent Grant
• 3880244

• References
• Source

• Patent Number

  3,880,244

• Date Filed

  Not available

• Date Issued

  Tuesday, April 29, 1975
  49 years ago

• CPC

  • E21B19/081 - Screw-and-nut feed mechanisms
  • E21B44/06 - in response to the flow or pressure of the motive fluid of the drive
  • Y10T74/173 - Screw and nut adjusting means
  • Y10T408/172 - Responsive to Tool

• US Classifications

  • 173 - Tool driving or impacting
  • 074 - Machine element or mechanism
  • 408 - Cutting by use of rotating axially moving tool