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Application filed by Vasil Ing Kalcos, Martin Ing SterbafiledCriticalVasil Ing Kalcos
Priority to CS861920ApriorityCriticalpatent/CS261751B1/cs
Publication of CS192086A1publicationCriticalpatent/CS192086A1/cs
Publication of CS261751B1publicationCriticalpatent/CS261751B1/cs