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Application filed by Ladislav Horacek, Bretislav Kaplan, Josef PrihodafiledCriticalLadislav Horacek
Priority to CS887538ApriorityCriticalpatent/CS269483B1/en
Publication of CS753888A1publicationCriticalpatent/CS753888A1/en
Publication of CS269483B1publicationCriticalpatent/CS269483B1/en