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E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
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FR640695D1927-09-091927-09-09Procédé d'application de ciment volcanique pour toitures-terrasses et autres usages
ExpiredFR640695A
(fr)
Procédé pour fabriquer des tubes en ciment d'amiante ou autres matières analogues, tube obtenu par ce procédé, et dispositif pour l'application du procédé