3520263

Information

• Patent Grant
• 3520263

• References
• Source

• Patent Number

  3,520,263

• Date Filed

  Not available

• Date Issued

  Tuesday, July 14, 1970
  54 years ago

• CPC

  • B63G8/22 - Adjustment of buoyancy by water ballasting Emptying equipment for ballast tanks
  • F42B19/04 - Depth control
  • F42B22/08 - Drifting mines

• US Classifications

  • 114 - Ships
  • 441 - Buoys, rafts, and aquatic devices