US PATENT SUBCLASS 434 / 384
.~.~ Vacuum cleaner

Current as of: June, 1999
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434 /   HD   EDUCATION AND DEMONSTRATION

365  DF  MEANS FOR DEMONSTRATING APPARATUS, PRODUCT, OR SURFACE CONFIGURATION, OR FOR DISPLAYING EDUCATION MATERIAL OR STUDENT'S WORK {37}
382  DF  .~ Household equipment {2}
384.~.~ Vacuum cleaner

DEFINITION

Classification: 434/384

Vacuum cleaner:

(under subclass 382) Subject matter relating to apparatus for cleaning by removal of dirt by air suction.