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 Hlousek Cestmir IngfiledCriticalHlousek Cestmir Ing
Priority to CS894174ApriorityCriticalpatent/CS417489A2/en
Publication of CS417489A2publicationCriticalpatent/CS417489A2/en