3800347

Information

• Patent Grant
• 3800347

• References
• Source

• Patent Number

  3,800,347

• Date Filed

  Not available

• Date Issued

  Tuesday, April 2, 1974
  50 years ago

• CPC

  • B63B51/02 - with anchored light-ships by use of lighthouses
  • B63B22/18 - having means to control attitude or position

• US Classifications

  • 441 - Buoys, rafts, and aquatic devices