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 Henri E RosenfiledCriticalHenri E Rosen
Priority claimed from EP19900905917external-prioritypatent/EP0467927B1/de
Application grantedgrantedCritical
Publication of ATE98844T1publicationCriticalpatent/ATE98844T1/de