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Application filed by Josef Pasek, Vlastimil Ruzicka, Bohumir Dvorak, Vaclav Pexidr, Otakar Bilek, Jaromir LubojackyfiledCriticalJosef Pasek
Priority to CS581876ApriorityCriticalpatent/CS188524B1/cs
Publication of CS188524B1publicationCriticalpatent/CS188524B1/cs