US PATENT SUBCLASS 48 / 112
.~.~.~ Oil

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

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

DEFINITION

Classification: 48/112

Retorts in which wood, etc., is distilled for making gas and into which oil is injected or separately gasified and added to the wood-gas. Steam may also be injected.