IPC 2013 : E04G 3/34 : characterised by supporting structures provided on the roofs.

IPC2013 > E > E04 > E04G > E04G 3/00 > E04G 3/34[2] > characterised by supporting structures provided on the roofs.
Notes[t] E01 - E06: BUILDING
Notes[g] E04G 1/00 - E04G 7/00: Workmen's or safety scaffolds
E SECTION E — FIXED CONSTRUCTIONS.
E04 BUILDING.
E04G SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS.
E04G 3/00 Scaffolds essentially supported by building constructions, e.g. adjustable in height (E04G 1/00 takes precedence).
E04G 3/34 · · characterised by supporting structures provided on the roofs.