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PCE
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DIFF Subgroup
F22B 7/16

Component parts thereof; Accessories therefor, e.g. stay-bolt connections

Introduced: September 1968

Full Title

Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body > Component parts thereof; Accessories therefor, e.g. stay-bolt connections

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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  • F22B 7/18 Walling of flues; Flue-gas header boxes IPC+CPC Available in IPC and CPC
  • F22B 7/20 Furnace tubes IPC+CPC Available in IPC and CPC