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Class Information
Number: 4/220
Name: Baths, closets, sinks, and spittoons > Ventilation > Sewer > Disinfecting
Description: Sewer ventilators provided with disinfecting apparatus.










Patents under this class:

Patent Number Title Of Patent Date Issued
8161579 Toilet tank mounted odor eliminator Apr. 24, 2012
6886592 Sewer relief valve with integral disinfectant means May. 3, 2005
6643850 Odor removal system Nov. 11, 2003











 
 
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