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Application filed by Ludwik Trumpus, Juliusz TrumpusfiledCriticalLudwik Trumpus
Priority to PL372028ApriorityCriticalpatent/PL206869B1/pl
Priority claimed from PL372028Aexternal-prioritypatent/PL206869B1/pl
Publication of PL372028A1publicationCriticalpatent/PL372028A1/pl
Publication of PL206869B1publicationCriticalpatent/PL206869B1/pl