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 Jaroslav Sirka, Otakar Zouhar, Jambrich Jan, Igor MalotafiledCriticalJaroslav Sirka
Priority to CS837592ApriorityCriticalpatent/CS233245B1/cs
Publication of CS759283A1publicationCriticalpatent/CS759283A1/cs
Publication of CS233245B1publicationCriticalpatent/CS233245B1/cs