3796271

Information

• Patent Grant
• 3796271

• References
• Source

• Patent Number

  3,796,271

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1974
  50 years ago

• CPC

  • E21B6/00 - Drives for combined percussion and rotary drilling
  • Y10S173/04 - Liquid operated

• US Classifications

  • 173 - Tool driving or impacting