2658352

Information

• Patent Grant
• 2658352

• References
• Source

• Patent Number

  2,658,352

• Date Filed

  Not available

• Date Issued

  Tuesday, November 10, 1953
  71 years ago

• CPC

  • E21B11/06 - with driven cutting chains or similarly driven tools

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 166 - Wells
  • 173 - Tool driving or impacting
  • 175 - Boring or penetrating the earth