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Class Information
Number: 4/475
Name: Baths, closets, sinks, and spittoons > Dry closets > Vault type > Ventilated
Description: Subject matter including means for removing gases having a disagreeable odor.

Patents under this class:

Patent Number Title Of Patent Date Issued
6081939 Portable toilet Jul. 4, 2000
5285534 Recycling device Feb. 15, 1994
4894872 Waterless sanitation system with ventilation Jan. 23, 1990
4581780 Precast concrete toilet with vent Apr. 15, 1986

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