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Application filed by Pavol Ing Weinwurm, Jan Ing PollerfiledCriticalPavol Ing Weinwurm
Priority to CS855595ApriorityCriticalpatent/CS251536B1/en
Publication of CS559585A1publicationCriticalpatent/CS559585A1/en
Publication of CS251536B1publicationCriticalpatent/CS251536B1/en