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E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
E04G3/20—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by walls