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Priority claimed from DE19873701677external-prioritypatent/DE3701677C1/en
Priority claimed from DE19873719465external-prioritypatent/DE3719465A1/en
Application filed by Josef KuehlmannfiledCriticalJosef Kuehlmann
Priority claimed from EP88900767Aexternal-prioritypatent/EP0299015B1/en
Application grantedgrantedCritical
Publication of ATE64062T1publicationCriticalpatent/ATE64062T1/en