E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
E03D3/00—Flushing devices operated by pressure of the water supply system flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
E03D3/02—Self-closing flushing valves
E03D3/04—Self-closing flushing valves with piston valve and pressure chamber for retarding the valve-closing movement
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Life Sciences & Earth Sciences
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Engineering & Computer Science
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Hydrology & Water Resources
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Public Health
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Water Supply & Treatment
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Sanitary Device For Flush Toilet
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Self-Closing Valves And Venting Or Aerating Valves
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Dispositif nettoyable et qui ne s'engorge pas pour l'injection de gaz dans des conteneurs ou des conduits pour un liquide contenant des impuretes ou des corps etrangers, tel que des vasques d'epuration, conduits d'egouts ou similaires.