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
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Application filedfiledCritical
Priority to DD18084274ApriorityCriticalpatent/DD114979A2/xx
Priority to DE19742458151prioritypatent/DE2458151A1/de
Priority to GB55367/74Aprioritypatent/GB1498401A/en
Priority to DK676874Aprioritypatent/DK676874A/da
Priority to SE7416245Aprioritypatent/SE405633B/xx
Priority to FR7443190Aprioritypatent/FR2256349B1/fr
Priority to FI3760/74Aprioritypatent/FI376074A7/fi
Publication of DD114979A2publicationCriticalpatent/DD114979A2/xx