DIFF Subgroup
F24F 13/24 Means for preventing or suppressing noise
Introduced: January 1990
Full Title
Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening > Means for preventing or suppressing noise
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Note: 3 CPC extensions are marked as secondary classification only.
Child Classifications
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