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Class Information
Number: 4/371
Name: Baths, closets, sinks, and spittoons > Flush closet > Tank only > With outlet siphon > Including means to relieve trapped air > By raising trapped air housing
Description: Subject matter wherein the air pressure is lowered by moving the device holding the trapped air in an upward direction so as to allow the air to expand and initiate liquid flow through the siphon.

Patents under this class:

Patent Number Title Of Patent Date Issued
7976600 Device and method for containment and elimination of toxic or other contaminant aerosols Jul. 12, 2011
7485166 Device and method for detection, collection, containment, neutralization, and elimination of toxic or other contaminant aerosols Feb. 3, 2009

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