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Application filed by Skrziszowski Amandus, Alois SedlacekfiledCriticalSkrziszowski Amandus
Priority to CS867844ApriorityCriticalpatent/CS260813B1/en
Publication of CS784486A1publicationCriticalpatent/CS784486A1/en
Publication of CS260813B1publicationCriticalpatent/CS260813B1/en