DIFF Subgroup
F22B 13/10 with auxiliary water tubes inside the fire-box
Introduced: September 1968
Full Title
Steam boilers of fire-box type, i.e. boilers where both combustion chambers and subsequent flues or fire tubes are arranged within the boiler body > Locomobile, traction-engine, steam-roller, or locomotive boilers > with auxiliary water tubes inside the fire-box
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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