3620313

Information

• Patent Grant
• 3620313

• References
• Source

• Patent Number

  3,620,313

• Date Filed

  Not available

• Date Issued

  Tuesday, November 16, 1971
  53 years ago

• CPC

  • E21B7/14 - Drilling by use of heat
  • E21B7/18 - Drilling by liquid or gas jets, with or without entrained pellets
  • G01V1/116 - where pressurised combustion gases escape from the generator in a pulsating manner
  • G01V1/52 - Structural details

• US Classifications

  • 175 - Boring or penetrating the earth