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PCE
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DIFF Subgroup
F28D 11/04

performed by a tube or a bundle of tubes

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Heat-exchange apparatus employing moving conduits > the movement being rotary, e.g. performed by a drum or roller > performed by a tube or a bundle of tubes

CPC:

Heat-exchange apparatus employing moving conduits > the movement being rotary, e.g. performed by a drum or roller (F28D11/08 takes precedence) > performed by a tube or a bundle of tubes

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