DIFF Subgroup
F24F 11/77 by controlling the speed of ventilators
Introduced: January 2018
Full Title
Control or safety arrangements > Control systems characterised by their outputs; Constructional details thereof > for controlling the supply of treated air, e.g. its pressure > for controlling air flow rate or air velocity > by controlling the speed of ventilators
No child classifications to compare. This is a leaf node in both IPC and CPC.