US PATENT SUBCLASS 134 / 30
.~.~ Including steam, gaseous agent or temperature feature

Current as of: June, 1999
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134 /   HD   CLEANING AND LIQUID CONTACT WITH SOLIDS

*  DD  PROCESSES {23}
26  DF  .~ Using sequentially applied treating agents {4}
30.~.~ Including steam, gaseous agent or temperature feature

DEFINITION

Classification: 134/30

(under subclass 26) Processes which include treating the work with steam or gas, or heating or cooling the work or treating it at specified temperatures or with an agent which has a specified temperature or with plural agents at different temperatures.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27, 28, and 29, for the subject matter of this subclass (30) utilizing the particular agents specified in such subclasses.

37, for use of gas or vapor blasts alone.