US PATENT SUBCLASS 29 / 81.07
.~.~ With heater

Current as of: June, 1999
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29 /   HD   METAL WORKING

81.01  DF  SCALE REMOVER OR PREVENTOR {9}
81.06  DF  .~ Fluid impingement {3}
81.07.~.~ With heater

DEFINITION

Classification: 29/81.07

With heater:

(under subclass 81.06) Process or apparatus wherein the impinging fluid is maintained at a relatively high temperature (i.e., hot gas, etc.).