US PATENT SUBCLASS 48 / 202
.~ Coal and water

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

197 R  DF  PROCESSES {15}
202.~ Coal and water

DEFINITION

Classification: 48/202

Processes for gasifying coal and combining therewith water-gas or simultaneously gasifying coal and decomposing steam in the same retort.

SEE OR SEARCH CLASS

201, Distillation: Processes, Thermolytic,

38, for a process of carbonizing coal in the presence of steam.