3817336

Information

• Patent Grant
• 3817336

• References
• Source

• Patent Number

  3,817,336

• Date Filed

  Not available

• Date Issued

  Tuesday, June 18, 1974
  50 years ago

• CPC

  • E21B7/06 - Deflecting the direction of boreholes
  • E21B7/04 - Directional drilling
  • E21B47/02232 - using a pendulum

• US Classifications

  • 175 - Boring or penetrating the earth