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 Michael A OberlanderfiledCriticalMichael A Oberlander
Priority claimed from EP89312706Aexternal-prioritypatent/EP0432320B1/de
Application grantedgrantedCritical
Publication of ATE124228T1publicationCriticalpatent/ATE124228T1/de