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Priority claimed from DE1908205189Dexternal-prioritypatent/DE205189C/de
Application filed by Heinrich Adolf HuelsenbergfiledCriticalHeinrich Adolf Huelsenberg
Application grantedgrantedCritical
Publication of AT39952BpublicationCriticalpatent/AT39952B/de
Järnbetontak ägande jämn undre ytan och bestående av enskilda järnbetonbågstycken mellan järnbetonbjälkar eller mellan järnbalkar, resp. nitade järnbjälkar