US PATENT SUBCLASS 29 / 81.12
.~ Brush type

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

81.01  DF  SCALE REMOVER OR PREVENTOR {9}
81.12.~ Brush type

DEFINITION

Classification: 29/81.12

Brush type:

(under subclass 81.01) Process or apparatus wherein the work contacting member has a plurality of anchored bristles which loosen or remove the scale.

SEE OR SEARCH CLASS

15, Brushing, Scrubbing, and General Cleaning,

21.1, for a cleaning machine whose cleaning instruments are of the brush type.