Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jaroslav Rakus, Karel Foerchgott, Hugo PavlovskyfiledCriticalJaroslav Rakus
Priority to CS377481ApriorityCriticalpatent/CS222476B1/cs
Publication of CS222476B1publicationCriticalpatent/CS222476B1/cs