2939197

Information

• Patent Grant
• 2939197

• References
• Source

• Patent Number

  2,939,197

• Date Filed

  Not available

• Date Issued

  Tuesday, June 7, 1960
  64 years ago

• CPC

  • B23B31/16054 - Form of the jaws
  • 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
  • Y10T279/1913 - Transverse-screw actuated
  • Y10T279/1986 - Jaws

• US Classifications

  • 279 - Chucks or sockets