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 Josef MatysfiledCriticalJosef Matys
Priority to CS789675ApriorityCriticalpatent/CS188407B1/cs
Publication of CS188407B1publicationCriticalpatent/CS188407B1/cs