(under the class definition) Vehicles of normal wheelbase carrying a steam-engine and boiler, the parts of the power plant constituting the main part of the vehicle, precluding its use as a means of carrying goods or passengers.
(1) Note. Classification in this and the indented subclasses likewise is proper when only the steam traction
engine vehicle and its boiler are claimed, i.e., the motor (engine) is disclosed but not claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
303+, for a motor vehicle of other than the steam traction engine type having a propulsion motor driven by expansible gas from an external source, which gas is produced by treating a volatile fluid (e.g., the gas is steam).
310, for a vehicle of the kind described above as being proper for subclasses 303+ but wherein the vehicle's motor is not claimed.
SEE OR SEARCH CLASS 60, Power Plants,
668, for a steam power system physically related to vehicle structure. See (1) Note of the class definition of Class 180 for the line between Class 180 and the power or motor classes.
74, Machine Element or Mechanism, in appropriate subclasses, for transmission mechanism not involving specific vehicle structure. For a more detailed statement of this line see Note 1, b, under the class definition.
280, Land Vehicles,
830+, for inventions relating to the mounting of a boiler on the running gear.
