3893404

Information

• Patent Grant
• 3893404

• References
• Source

• Patent Number

  3,893,404

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1975
  49 years ago

• CPC

  • B63B35/03 - Pipe-laying vessels
  • B63H15/00 - Effecting propulsion by use of vessel-mounted driving mechanisms co-operating with anchored chains or the like
  • E02F5/104 - for burying conduits or cables in trenches under water
  • E02F5/107 - using blowing-effect devices
  • F16L1/16 - on the bottom

• US Classifications

  • 440 - Marine propulsion
  • 114 - Ships
  • 318 - Electricity: motive power systems
  • 405 - Hydraulic and earth engineering