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 Francis Henri BreardfiledCriticalFrancis Henri Breard
Priority claimed from EP89401040Aexternal-prioritypatent/EP0392124B1/en
Application grantedgrantedCritical
Publication of ATE90547T1publicationCriticalpatent/ATE90547T1/en