This subclass is indented under subclass 87. Subject matter wherein significance is attributable to (a)
a door, flap, or similar barrier, (b) a transparent viewing port,
(c) an auxiliary open-sided structure having a flaccid roof or (d) means
for obscuring the sun.
SEE OR SEARCH THIS CLASS, SUBCLASS:
33.7,
for umbrellas with closures to increase the view
or for better circulation of air.
93,
for closures with ventilating functions.
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