3834672

Information

• Patent Grant
• 3834672

• References
• Source

• Patent Number

  3,834,672

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1974
  50 years ago

• CPC

  • E21B19/09 - specially adapted for drilling underwater formations from a floating support using heave compensators supporting the drill string
  • B66D1/48 - automatic
  • B66D2700/0108 - with devices for paying out or automatically tightening the cable

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force