2880964

Information

• Patent Grant
• 2880964

• References
• Source

• Patent Number

  2,880,964

• Date Filed

  Not available

• Date Issued

  Tuesday, April 7, 1959
  65 years ago

• CPC

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

• US Classifications

  • 175 - Boring or penetrating the earth
  • 037 - Excavating
  • 173 - Tool driving or impacting