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 Frantisek Ing Chalupka, Tibor Casny, Igor Bratinka, Gustav MariassyfiledCriticalFrantisek Ing Chalupka
Priority to CS863505ApriorityCriticalpatent/CS260275B1/cs
Publication of CS350586A1publicationCriticalpatent/CS350586A1/cs
Publication of CS260275B1publicationCriticalpatent/CS260275B1/cs