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Application filed by Jaroslav Silar, Jan Kubat, Rudolf Ing Pavlista, Novak Jan, Furst Pavel, Josef Stary, Josef KronikafiledCriticalJaroslav Silar
Priority to CS873791ApriorityCriticalpatent/CS268713B1/cs
Publication of CS379187A1publicationCriticalpatent/CS379187A1/cs
Publication of CS268713B1publicationCriticalpatent/CS268713B1/cs