US PATENT SUBCLASS 237 / 37
.~.~.~ Train steam

Current as of: June, 1999
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237 /   HD   HEATING SYSTEMS

28  DF  VEHICLE {7}
34  DF  .~ Water {2}
35  DF  .~.~ Car boiler {2}
37.~.~.~ Train steam {1}
38  DF  .~.~.~.~> Injected

DEFINITION

Classification: 237/37

(under subclass 35) Subject matter with additional means for heating the water by steam from the train pipe.