US PATENT SUBCLASS 48 / 111
.~.~ Wood

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

61  DF  GENERATORS {4}
89  DF  .~ Retort {12}
111.~.~ Wood {1}
112  DF  .~.~.~> Oil

DEFINITION

Classification: 48/111

Retorts in which wood, peat, sawdust, or other vegetable

matter is distilled for making gas and to which steam may be added and decomposed.

SEE OR SEARCH CLASS

202, Distillation: Apparatus, appropriate subclasses.