CPC Subgroup
E03D 5/12 discharging periodically (high-level cisterns for periodical discharge E03D1/16)
Full Title
Special constructions of flushing devices (in motor vehicles or trailers B60R15/00; in railway carriages B61D35/00; in ships B63B29/14; in aircraft B64D11/02), > discharging periodically (high-level cisterns for periodical discharge E03D1/16)