1417698

Information

• Patent Grant
• 1417698

• References
• Source

• Patent Number

  1,417,698

• Date Filed

  Not available

• Date Issued

  Tuesday, May 30, 1922
  102 years ago

• CPC

  • 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
  • Y10T403/251 - External reservoir

• US Classifications

  • 403 - Joints and connections