US PATENT SUBCLASS 48 / 207
.~.~ Down run

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

197 R  DF  PROCESSES {15}
204  DF  .~ Water {4}
207.~.~ Down run

DEFINITION

Classification: 48/207

Processes wherein steam is admitted to the top of a bed of incandescent fuel, passes through, and the resultant gas drawn off at the bottom.