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PCE
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DIFF Subgroup
F22B 11/02

the fire tubes being in upright arrangement

Introduced: September 1968

Full Title

Steam boilers of combined fire-tube type and water-tube type, i.e. steam boilers of fire-tube type having auxiliary water tubes > the fire tubes being in upright arrangement

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