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 filed by Caillau EtsfiledCriticalCaillau Ets
Priority claimed from EP89402782Aexternal-prioritypatent/EP0371829B1/de
Application grantedgrantedCritical
Publication of ATE70608T1publicationCriticalpatent/ATE70608T1/de