2705128

Information

• Patent Grant
• 2705128

• References
• Source

• Patent Number

  2,705,128

• Date Filed

  Not available

• Date Issued

  Tuesday, March 29, 1955
  69 years ago

• CPC

  • E21B10/43 - characterised by the arrangement of teeth or other cutting elements
  • E21B10/44 - Bits with helical conveying portion
  • E21B10/60 - characterised by conduits or nozzles for drilling fluids
  • Y10T279/17871 - Cap

• US Classifications

  • 175 - Boring or penetrating the earth
  • 279 - Chucks or sockets