3818711

Information

• Patent Grant
• 3818711

• References
• Source

• Patent Number

  3,818,711

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  50 years ago

• CPC

  • E02D3/115 - by freezing
  • Y10S111/915 - Special condition

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 062 - Refrigeration
  • 111 - Planting
  • 404 - Road structure, process, or apparatus