CPC Subgroup
F28D 11/02 the movement being rotary, e.g. performed by a drum or roller (F28D11/08 takes precedence)
Full Title
Heat-exchange apparatus employing moving conduits > the movement being rotary, e.g. performed by a drum or roller (F28D11/08 takes precedence)
2 direct subcodes
Child Classifications
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- F28D 11/04 performed by a tube or a bundle of tubes