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Class Information
Number: 4/426
Name: Baths, closets, sinks, and spittoons > Flush closet > Bowl > Siphon discharge > With check valve
Description: Subject matter including a check valve in the siphon passage between a trap and a waste pipe.










Patents under this class:

Patent Number Title Of Patent Date Issued
8621677 Odour seal for a vacuum toilet drain system Jan. 7, 2014
6401266 Waste outlet device Jun. 11, 2002
4190910 Plumbing apparatus including means for producing a water-plug effect in sanitation appliances Mar. 4, 1980
4180875 Urine disposal bypass unit Jan. 1, 1980
4178644 Water saving device for toilet Dec. 18, 1979
4115883 Diaphragm activated toilet Sep. 26, 1978
4107798 Self-contained toilet Aug. 22, 1978











 
 
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