CPC Subgroup
E04B 9/10 Connections between parallel members of the supporting construction (E04B9/08 takes precedence)
Full Title
Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation (ceilings used as forms for making floors E04B5/00; coverings or linings for ceilings E04F13/00) > characterised by constructional features of the supporting construction > Connections between parallel members of the supporting construction (E04B9/08 takes precedence)