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PCE
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DIFF Subgroup
F16K 24/042

Full Title

Devices, e.g. valves, for venting or aerating enclosures (equalising valves F16K17/00; arrangement or mounting in pipes or pipe systems F16L55/07; venting or aerating as an additional function of steam traps or like apparatus F16T; ventilation of rooms, vehicles, see the appropriate subclass, e.g. F24F) > for venting only (F16K24/02 takes precedence)

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.