3331453

Information

• Patent Grant
• 3331453

• References
• Source

• Patent Number

  3,331,453

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1967
  57 years ago

• CPC

  • E02D1/04 - Sampling of soil
  • E21B7/1245 - using explosive means
  • E21B25/18 - the core receiver being specially adapted for operation under water

• US Classifications

  • 175 - Boring or penetrating the earth
  • 089 - Ordnance