2777669

Information

• Patent Grant
• 2777669

• References
• Source

• Patent Number

  2,777,669

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1957
  68 years ago

• CPC

  • E21B7/132 - from underwater buoyant support
  • B63B21/50 - Anchoring arrangements or methods for special vessels

• US Classifications

  • 175 - Boring or penetrating the earth
  • 114 - Ships
  • 405 - Hydraulic and earth engineering