CPC Subgroup
F22B 13/14 Component parts thereof; Accessories therefor
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 > Component parts thereof; Accessories therefor
2 direct subcodes
Child Classifications
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- F22B 13/16 Stay-bolt connections, e.g. rigid connections