CPC Subgroup
E04G 3/18 supported by cantilevers or other provisions mounted in openings in the building, e.g. window openings (E04G3/28 takes precedence)
Full Title
Scaffolds essentially supported by building constructions, e.g. adjustable in height (E04G1/00 takes precedence ) > supported by cantilevers or other provisions mounted in openings in the building, e.g. window openings (E04G3/28 takes precedence)