3720063

Information

• Patent Grant
• 3720063

• References
• Source

• Patent Number

  3,720,063

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1973
  51 years ago

• CPC

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

• US Classifications

  • 405 - Hydraulic and earth engineering