US PATENT SUBCLASS 48 / 108
.~.~ Water


Current as of: June, 1999
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48 /   HD   GAS: HEATING AND ILLUMINATING

61  DF  GENERATORS {4}
89  DF  .~ Retort {12}
108.~.~ Water {2}
109  DF  .~.~.~> Carburetor
110  DF  .~.~.~> Oil gas


DEFINITION

Classification: 48/108

Retorts constructed to contain incandescent coal and into which steam is injected.