4. Static structures (e.g., buildings)
  5. Facer held by stiffener-type frame
  6. Facer back abuts and conceals frame

William E. Perk

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Hollow-louvered ceilings

Static structures (e.g. – buildings) – Facer held by stiffener-type frame – Facer back abuts and conceals frame
Patent

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Louvered ceiling

Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Fabric or lattice; e.g. – indeterminate grating
Patent

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Profile ID: LFUS-PAI-P-368079

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