US PATENT SUBCLASS 15 / 422.2
.~.~ Plural fans

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}
422.2.~.~ Plural fans

DEFINITION

Classification: 15/422.2

Plural fans:

(under subclass 300.1) Subject matter having more than one means to create a draft of air.