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 Proprietary Technology IncfiledCriticalProprietary Technology Inc
Priority claimed from EP92915914Aexternal-prioritypatent/EP0633992B1/de
Application grantedgrantedCritical
Publication of ATE176522T1publicationCriticalpatent/ATE176522T1/de