.~.~ Having readily movable air regulating louver,damper, or cover {5}
352
.~.~.~ Plural damper panel
DEFINITION
Classification: 454/352
Plural damper panels:
(under subclass 347) Subject matter comprising an easily shiftable air permitting or preventing inner body having two or more air engaging and controlling plates.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6, for plural pivoted chimney or stacktop closures.
31, for plural pivoted air current regulating means in a chimney or stacktop structure.
351, for plural damper panels in a wall mounted outlet airway.
