3174564

Information

• Patent Grant
• 3174564

• References
• Source

• Patent Number

  3,174,564

• Date Filed

  Not available

• Date Issued

  Tuesday, March 23, 1965
  59 years ago

• CPC

  • E21B10/18 - characterised by conduits or nozzles for drilling fluids
  • E21B10/06 - Roller core bits
  • E21B10/10 - with roller axle supported at both ends
  • E21B10/14 - combined with non-rolling cutters other than of leading-portion type
  • E21B10/48 - the bit being of core type

• US Classifications

  • 175 - Boring or penetrating the earth