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Publication of DK56471CpublicationCriticalpatent/DK56471C/da
DK56471D1937-12-151937-12-15Forskalling med Plader af Metal til Brug ved Fremstilling af Etageadskillelser, Tage og lignende Bygningsdele.
DK56471C
(da)
Perfectionnement à la construction des plafonds, toits, terrasses, etc., avec poutres tubulaires en béton armé et aux moules pour la fabrication desdites poutres