3903831

Information

• Patent Grant
• 3903831

• References
• Source

• Patent Number

  3,903,831

• Date Filed

  Not available

• Date Issued

  Tuesday, September 9, 1975
  49 years ago

• CPC

  • B60F3/00 - Amphibious vehicles
  • B60F3/0053 - Particular devices for gas circulation
  • B62D47/02 - for large numbers of passengers
  • B60F2301/04 - pivotally

• US Classifications

  • 114 - Ships
  • 180 - Motor vehicles
  • 440 - Marine propulsion