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 CS520671ApriorityCriticalpatent/CS151618B1/cs
Priority to DD16098072Aprioritypatent/DD95479A5/xx
Priority to DE19722208244prioritypatent/DE2208244A1/de
Priority to RO71129Aprioritypatent/RO61547A/ro
Priority to FR7225452Aprioritypatent/FR2146060A5/fr
Publication of CS151618B1publicationCriticalpatent/CS151618B1/cs