US PATENT SUBCLASS 15 / 340.4
.~.~.~.~ Plural brushes

Current as of: June, 1999
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15 /   HD   BRUSHING, SCRUBBING, AND GENERAL CLEANING

3  DF  MACHINES {11}
300.1  DF  .~ With air blast or suction {26}
340.1  DF  .~.~ Power propelled vehicle or carrier {2}
340.3  DF  .~.~.~ Including brush {1}
340.4.~.~.~.~ Plural brushes

DEFINITION

Classification: 15/340.4

Plural brushes:

(under subclass 340.3) Subject matter having two or more brushes movable relative to each other.