Patent classifications
E
FIXED CONSTRUCTIONS
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E03
WATER SUPPLY; SEWERAGE
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E03D
WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
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1/00
Water flushing devices with cisterns; ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
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E03D1/02
High-level flushing systems
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E03D1/14
Cisterns discharging variable quantities of water; also cisterns with bell siphons in combination with flushing valves
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