3716106

Information

• Patent Grant
• 3716106

• References
• Source

• Patent Number

  3,716,106

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1973
  51 years ago

• CPC

  • E21B3/06 - Adaptation of rotary draw works to drive rotary tables
  • E21B19/08 - Apparatus for feeding the rods or cables Apparatus for increasing or decreasing the pressure on the drilling tool Apparatus for counterbalancing the weight of the rods

• US Classifications

  • 173 - Tool driving or impacting
  • 175 - Boring or penetrating the earth