3722921

Information

• Patent Grant
• 3722921

• References
• Source

• Patent Number

  3,722,921

• Date Filed

  Not available

• Date Issued

  Tuesday, March 27, 1973
  51 years ago

• CPC

  • B60D1/481 - adapted for being mounted to the front and back of trailers, carts, trolleys, or the like to form a train
  • B60D1/00 - Traction couplings Hitches Draw-gear Towing devices
  • B60D1/483 - adapted for being mounted to the side of a vehicle
  • B62D53/00 - Tractor-trailer combinations Road trains
  • B60D2001/005 - for carts, scooters, or the like

• US Classifications

  • 280 - Land vehicles
  • 172 - Earth working