3788396

Information

• Patent Grant
• 3788396

• References
• Source

• Patent Number

  3,788,396

• Date Filed

  Not available

• Date Issued

  Tuesday, January 29, 1974
  50 years ago

• CPC

  • E21B33/035 - specially adapted for underwater installations
  • E21B7/122 - with submersible vertically movable guide
  • E21B41/0014 - Underwater well locating or reentry systems

• US Classifications

  • 166 - Wells
  • 175 - Boring or penetrating the earth