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 Tomas Ing Hulka, Sima Josef, Milan Ing BlecherfiledCriticalTomas Ing Hulka
Priority to CS846237ApriorityCriticalpatent/CS243158B1/en
Publication of CS623784A1publicationCriticalpatent/CS623784A1/en
Publication of CS243158B1publicationCriticalpatent/CS243158B1/en