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Application filed by Jan Ing Popelka, Juraj Ing Pecka, Pavol AdamcikfiledCriticalJan Ing Popelka
Priority to CS861600ApriorityCriticalpatent/CS256174B1/en
Publication of CS160086A1publicationCriticalpatent/CS160086A1/en
Publication of CS256174B1publicationCriticalpatent/CS256174B1/en