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Application filed by Jens Ditlev PetersenfiledCriticalJens Ditlev Petersen
Priority to DK380455ApriorityCriticalpatent/DK84681C/da
Priority to DE1956P0010759prioritypatent/DE1737811U/de
Application grantedgrantedCritical
Publication of DK84681CpublicationCriticalpatent/DK84681C/da