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Priority claimed from DE19681814809external-prioritypatent/DE1814809A1/de
Priority claimed from DE19696901158external-prioritypatent/DE6901158U/de
Application filed by Mueller Ernst Luft & FarbfiledCriticalMueller Ernst Luft & Farb
Application grantedgrantedCritical
Publication of AT306192BpublicationCriticalpatent/AT306192B/de