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 Karel Chmelik, Pavel Ozana, Svattpluk Dorda, Bohuslav ZilafiledCriticalKarel Chmelik
Priority to CS512475ApriorityCriticalpatent/CS182494B1/cs
Publication of CS182494B1publicationCriticalpatent/CS182494B1/cs