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PCE
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DIFF Subgroup
E04B 9/28

with the slabs, sheets or the like having grooves engaging with horizontal flanges of the supporting construction or accessory means connected thereto

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation > Connection of slabs, sheets or the like to the supporting construction > with the slabs, sheets or the like having grooves engaging with horizontal flanges of the supporting construction or accessory means connected thereto

CPC:

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) > Connection of slabs, sheets or the like to the supporting construction > with the slabs, sheets or the like having grooves engaging with horizontal flanges of the supporting construction or accessory means connected thereto

No child classifications to compare. This is a leaf node in both IPC and CPC.