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Application filed by Josef Kovar, Jiri Krump, Pavel Wallenfels, Kanderal FrantisekfiledCriticalJosef Kovar
Priority to CS841022ApriorityCriticalpatent/CS239727B1/cs
Publication of CS102284A1publicationCriticalpatent/CS102284A1/cs
Publication of CS239727B1publicationCriticalpatent/CS239727B1/cs