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 Vladimir Ing Kroca, Eman Florian, Bohumil Janosek, Karel Ing GoldafiledCriticalVladimir Ing Kroca
Priority to CS85110ApriorityCriticalpatent/CS253079B1/en
Publication of CS11085A1publicationCriticalpatent/CS11085A1/en
Publication of CS253079B1publicationCriticalpatent/CS253079B1/en