3404740

Information

• Patent Grant
• 3404740

• References
• Source

• Patent Number

  3,404,740

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1968
  56 years ago

• CPC

  • E02D3/106 - by forming sand drains containing only loose aggregates
  • E02D7/26 - Placing by using several means simultaneously

• US Classifications

  • 173 - Tool driving or impacting