US PATENT SUBCLASS 52 / 132
.~.~ With internal air director

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

128  DF  BURIAL VAULT {8}
131  DF  .~ With fluid guiding port from ambient {1}
132.~.~ With internal air director

DEFINITION

Classification: 52/132

(under subclass 131) Structure including structure within the enclosed space for directing circulating air.

SEE OR SEARCH CLASS

454, Ventilation, appropriate subclass, for a ventilated enclosure of more general application having means for directing or forcing air to or from an enclosed space relative to the ambient atmosphere.