by cutting or perforating, with or without deformation

Full Title

Sheets, panels, or other members of similar proportions; Constructions comprising assemblies of such members (built-up gratings F16S3/00; layered products B32B) > produced by deforming or otherwise working a flat sheet (honeycomb or other core members for layered products B32B3/00, e.g. B32B3/12, B32B3/266, B32B3/26) > by cutting or perforating, with or without deformation