3059618

Information

• Patent Grant
• 3059618

• References
• Source

• Patent Number

  3,059,618

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1962
  62 years ago

• CPC

  • E21B6/06 - the rotation being intermittent, e.g.obtained by ratchet device
  • E21B6/00 - Drives for combined percussion and rotary drilling
  • E21B6/08 - Separate drives for percussion and rotation

• US Classifications

  • 173 - Tool driving or impacting