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Publication of FR901730ApublicationCriticalpatent/FR901730A/fr
E04C1/00—Building elements of block or other shape for the construction of parts of buildings
E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
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FR901730D1944-02-021944-02-02Perfectionnements aux parois planes et autres
ExpiredFR901730A
(fr)