3368228

Information

• Patent Grant
• 3368228

• References
• Source

• Patent Number

  3,368,228

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1968
  56 years ago

• CPC

  • B63B1/047 - with spherical hull or hull in the shape of a vertical ring
  • A63B19/02 - Freely-movable rolling hoops
  • B63B2241/12 - annular or toroidal

• US Classifications

  • 441 - Buoys, rafts, and aquatic devices
  • 472 - Amusement devices