2822158

Information

• Patent Grant
• 2822158

• References
• Source

• Patent Number

  2,822,158

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1958
  66 years ago

• CPC

  • E21B19/22 - Handling reeled pipe or rod units
  • E21B7/06 - Deflecting the direction of boreholes
  • E21B17/20 - Flexible or articulated drilling pipes
  • E21B43/292 - using steerable or laterally extendable nozzles

• US Classifications

  • 299 - Mining or in situ disintegration of hard material