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 filedfiledCritical
Priority to CS153475ApriorityCriticalpatent/CS175911B1/cs
Priority to DD191698Aprioritypatent/DD124841A1/xx
Publication of CS175911B1publicationCriticalpatent/CS175911B1/cs