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 Milan Ing Smutny, Dana Ing Hlinkova, Josef Ing BuchtafiledCriticalMilan Ing Smutny
Priority to CS881868ApriorityCriticalpatent/CS272376B1/en
Publication of CS186888A1publicationCriticalpatent/CS186888A1/en
Publication of CS272376B1publicationCriticalpatent/CS272376B1/en