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Application filed by Jaroslav Ing Potocek, Josef Konecny, Milan BurketfiledCriticalJaroslav Ing Potocek
Priority to CS876323ApriorityCriticalpatent/CS263069B1/cs
Publication of CS632387A1publicationCriticalpatent/CS632387A1/cs
Publication of CS263069B1publicationCriticalpatent/CS263069B1/cs