Latch for draft arm extension

Lateral supporting means for by means of spherical members...

Laterally and longitudinally adjustable hitch coupling device

Lift unit for weight distributing trailer hitch

Lift unit for weight distributing trailer hitch

Light conductor coupling

Light guide for a trailer hookup

Load damping frame hitch for vehicles towing a trailer

Load skidding vehicle with weight transferring grapple

Load-stabilizing trailer hitch

Lock construction

Lockbox for hitch receiver

Locking assembly for trailer hitches

Locking device for a draw pin

Locking device for an omnibus-trailer combination

Locking device for trailer hitches and method therefor

Locking device for trailing hitch assembly

Locking mechanism for trailer coupling

Locking trailer coupling