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PCE
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DIFF Subgroup
F22D 1/14

Safety or venting devices

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Feed-water heaters, e.g. preheaters > with water tubes arranged in the boiler furnaces, fire tubes or flue ways > Safety or venting devices

CPC:

Feed-water heaters, i.e. economisers or like preheaters > with water tubes arranged in the boiler furnaces, fire tubes or flue ways > Safety or venting devices

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