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PCE
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DIFF Subgroup
F22D 5/28

responsive to amount of steam withdrawn; responsive to steam pressure

Introduced: September 1968

Full Title

Controlling water feed or water level; Automatic water feeding or water-level regulators > Automatic feed-control systems > responsive to amount of steam withdrawn; responsive to steam pressure

No child classifications to compare. This is a leaf node in both IPC and CPC.