3411595

Information

• Patent Grant
• 3411595

• References
• Source

• Patent Number

  3,411,595

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1968
  56 years ago

• CPC

  • 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