US PATENT SUBCLASS 432 / 16
.~.~ Including a dust control or particle separation step


Current as of: June, 1999
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432 /   HD   HEATING

1  DF  PROCESSES OF HEATING OR HEATER OPERATION {14}
14  DF  .~ Including passing, treating or conveying gas into or through particulate work {3}
16.~.~ Including a dust control or particle separation step


DEFINITION

Classification: 432/16

(under subclass 14) Process involving the separation of work particles from withdrawn treating gas.