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Application filed by Hans Helmuth HansenfiledCriticalHans Helmuth Hansen
Priority to DK447481ApriorityCriticalpatent/DK146641C/da
Publication of DK447481ApublicationCriticalpatent/DK447481A/da
Publication of DK146641BpublicationCriticalpatent/DK146641B/da
Application grantedgrantedCritical
Publication of DK146641CpublicationCriticalpatent/DK146641C/da