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 DD16206372ApriorityCriticalpatent/DD96292A1/xx
Priority to NL7206678Aprioritypatent/NL7206678A/xx
Priority to DE19722239573prioritypatent/DE2239573A1/de
Priority to AT715372Aprioritypatent/ATA715372A/de
Priority to FR7240322Aprioritypatent/FR2173902B3/fr
Publication of DD96292A1publicationCriticalpatent/DD96292A1/xx