3566982

Information

• Patent Grant
• 3566982

• References
• Source

• Patent Number

  3,566,982

• Date Filed

  Not available

• Date Issued

  Tuesday, March 2, 1971
  53 years ago

• CPC

  • E02D19/10 - by lowering level of ground water

• US Classifications

  • 175 - Boring or penetrating the earth
  • 166 - Wells
  • 285 - Pipe joints or couplings
  • 405 - Hydraulic and earth engineering