(under subclass 39.01) Plants having a single motor in which two or more unlike motive fluids are simultaneously employed without being mixed in the motor, at least one of the motive fluids being composed of combustion products.
SEE OR SEARCH THIS CLASS, SUBCLASS:
486, and 674, for power plants simultaneously using two or more different motive fluids in a single motor, the motive fluids being other than combustion products.
