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Application filed by Machacek Vaclav, Neuhaeusl Emil, Frantisek Vorisek, Marik Jiri, Vlastimil Ing Sindelar, Anna PopelikovafiledCriticalMachacek Vaclav
Priority to CS811445ApriorityCriticalpatent/CS230607B1/cs
Publication of CS144581A1publicationCriticalpatent/CS144581A1/cs
Publication of CS230607B1publicationCriticalpatent/CS230607B1/cs