(under subclass 420) Devices in which the service connection between the vehicles comprises means to conduct fluid from one vehicle to the other vehicle.
SEE OR SEARCH CLASS
137, Fluid Handling,
351+, for a valved fluid flow line supported from an automobile.
213, Railway Draft Appliances,
76, for the combination of a railway draft coupling and a train pipe coupling. 285, Pipe Joints or Couplings,
24+, for the combination of a coupling, a guide and support means, and subclasses 61+ for a coupling combined with a support, especially subclass 62 wherein the support comprises vehicle means.
