DIFF Main Group
F27D 17/00 Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
Introduced: September 1968
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
IPC defines codes here since 2025.
Child Classifications
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- F27D 17/20 Arrangements for treatment or cleaning of waste gases since 2025 IPC+CPC Available in IPC and CPC
- F27D 17/30 Arrangements for extraction or collection of waste gases; Hoods therefor since 2025 +2 CPC IPC+CPC Available in IPC and CPC