2884068

Information

• Patent Grant
• 2884068

• References
• Source

• Patent Number

  2,884,068

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1959
  66 years ago

• CPC

  • E21B31/18 - gripping externally
  • E21B31/14 - with means deflecting the direction of the tool

• US Classifications

  • 175 - Boring or penetrating the earth
  • 173 - Tool driving or impacting
  • 294 - Handling: hand and hoist-line implements