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 Vojtech Ing Neuzil, Stefan Balla, Julius SchafferfiledCriticalVojtech Ing Neuzil
Priority to CS835028ApriorityCriticalpatent/CS232142B1/en
Publication of CS502883A1publicationCriticalpatent/CS502883A1/en
Publication of CS232142B1publicationCriticalpatent/CS232142B1/en