2336337

Information

• Patent Grant
• 2336337

• References
• Source

• Patent Number

  2,336,337

• Date Filed

  Not available

• Date Issued

  Tuesday, December 7, 1943
  81 years ago

• CPC

  • E21B10/22 - characterised by bearing, lubrication or sealing details
  • E21B10/083 - with longitudinal axis
  • E21B10/18 - characterised by conduits or nozzles for drilling fluids

• US Classifications

  • 175 - Boring or penetrating the earth