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F
F23
F23D
F23D 2209/00
F23D 2209/10

CPC Subgroup Additional Only

F23D 2209/10

Flame flashback

Full Title

Safety arrangements > Flame flashback

CPC F23D 2209/10

No direct equivalent in IPC

3 CPC-only subgroups

Data: WIPO (IPC), EPO/USPTO (CPC) — CC BY 4.0

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