2670180

Information

• Patent Grant
• 2670180

• References
• Source

• Patent Number

  2,670,180

• Date Filed

  Not available

• Date Issued

  Tuesday, February 23, 1954
  70 years ago

• CPC

  • E03B3/11 - in combination with tubes

• US Classifications

  • 175 - Boring or penetrating the earth
  • 166 - Wells
  • 173 - Tool driving or impacting