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 PL16467573ApriorityCriticalpatent/PL82408B1/xx
Priority to FR7427553Aprioritypatent/FR2223071A1/fr
Priority to DE19742439162prioritypatent/DE2439162C3/de
Publication of PL82408B1publicationCriticalpatent/PL82408B1/xx