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
Priority claimed from FR7223182Aexternal-prioritypatent/FR2190715B1/fr
Application filed by Tractel SafiledCriticalTractel Sa
Priority to DK39875ApriorityCriticalpatent/DK39875A/da
Publication of DK39875ApublicationCriticalpatent/DK39875A/da