4309781 Automatic flushing system 1982-01-12 Lissan 4D/IG3 3056143 Apparatus for automatically flushing a toilet bowl or the like 1962-10-02 Foster 2635691 Flush valve operating arrangement 1953-04-21 Filliung 4D/IG3 2552625 Electrically operated flush valve 1951-05-15 Filliung 4D/IG3 1057632...