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 FR8711621Aexternal-prioritypatent/FR2619318B1/fr
Application filed by Bernard TomczakfiledCriticalBernard Tomczak
Priority claimed from EP88402092Aexternal-prioritypatent/EP0303544B1/de
Application grantedgrantedCritical
Publication of ATE71549T1publicationCriticalpatent/ATE71549T1/de