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Application filed by Bygmester Johannes Toft AsfiledCriticalBygmester Johannes Toft As
Priority to DK633174ApriorityCriticalpatent/DK138239B/da
Publication of DK633174ApublicationCriticalpatent/DK633174A/da
Publication of DK138239BpublicationCriticalpatent/DK138239B/da
Application grantedgrantedCritical
Publication of DK138239CpublicationCriticalpatent/DK138239C/da