US PATENT SUBCLASS 201 / 38
.~ Steam containing

Current as of: June, 1999
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201 /   HD   DISTILLATION: PROCESSES, THERMOLYTIC

36  DF  AND ADDING DISPARATE GASEOUS MATERIAL TO THE CARBONIZING ZONE {2}
38.~ Steam containing

DEFINITION

Classification: 201/38

(under subclass 36) Processes in which the extraneous gaseous material includes steam.

SEE OR SEARCH CLASS

48, Gas: Heating and Illuminating,

200, 202 and 204+, for a process of gasifying fuel in which steam is injected into the incandescent fuel.

110, Furnaces,

188+, 199+, 296, and 297+ for means of feeding air and steam to a furnace.