CPC Subgroup
E04D 13/03 Sky-lights; Domes; Ventilating sky-lights (E04D13/14 takes precedence; structures therefor, E04B7/18; )
Full Title
Special arrangements or devices in connection with roof coverings; Roof drainage (ventilation tiles E04D1/30; ventilation slabs E04D3/40; internal channels E04F17/00) > Sky-lights; Domes; Ventilating sky-lights (E04D13/14 takes precedence; structures therefor, E04B7/18; )
7 direct subcodes
Child Classifications
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- E04D 13/035 characterised by having movable parts