DIFF Subgroup
F28C 3/10 one heat-exchange medium at least being a fluent solid, e.g. a particulate material
Introduced: September 1968
Full Title
Other direct-contact heat-exchange apparatus > one heat-exchange medium at least being a fluent solid, e.g. a particulate material
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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- F28C 3/12 the heat-exchange medium being a particulate material and a gas, vapour, or liquid IPC+CPC Available in IPC and CPC