DIFF Subgroup
F24F 11/87 by controlling absorption or discharge of heat in outdoor units
Introduced: January 2018
Full Title
Control or safety arrangements > Control systems characterised by their outputs; Constructional details thereof > for controlling the temperature of the supplied air > by controlling absorption or discharge of heat in outdoor units
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 2018.
Child Classifications
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