CPC Subgroup
E03D 3/08 with other retarding devices
Full Title
Flushing devices operated by pressure of the water supply system > Self-closing flushing valves (self-closing valves in general F16K21/04) > with other retarding devices
E03D 3/08 Flushing devices operated by pressure of the water supply system > Self-closing flushing valves (self-closing valves in general F16K21/04) > with other retarding devices