3426538

Information

• Patent Grant
• 3426538

• References
• Source

• Patent Number

  3,426,538

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1969
  55 years ago

• CPC

  • E02D3/106 - by forming sand drains containing only loose aggregates

• US Classifications

  • 405 - Hydraulic and earth engineering