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Application filed by Alois Ing Csc Vavra, Karel Bok, Miroslav ZemanfiledCriticalAlois Ing Csc Vavra
Priority to CS877288ApriorityCriticalpatent/CS269922B1/cs
Publication of CS728887A1publicationCriticalpatent/CS728887A1/cs
Publication of CS269922B1publicationCriticalpatent/CS269922B1/cs