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PCE
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CPC Subgroup
F22D 5/02

with an intermediate compartment from which the water is fed by gravity after mechanically moving the compartment, the movement being controlled according to water level

Full Title

Controlling water feed or water level; Automatic water feeding or water-level regulators > with an intermediate compartment from which the water is fed by gravity after mechanically moving the compartment, the movement being controlled according to water level