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Application filed by Konstantin Dipl Tech Hruban, Seichter Pavel, Kvasnicka Jan, Josef Klohna, Vaclav Ing Csc Spacek, Ladislav PetrinafiledCriticalKonstantin Dipl Tech Hruban
Priority to CS843000ApriorityCriticalpatent/CS239086B1/en
Publication of CS300084A1publicationCriticalpatent/CS300084A1/en
Publication of CS239086B1publicationCriticalpatent/CS239086B1/en