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Application filed by Horst Bielig, Horst Galts, Klaus BallfiledCriticalHorst Bielig
Priority to DD20164377ApriorityCriticalpatent/DD133611A1/de
Publication of DD133611A1publicationCriticalpatent/DD133611A1/de
Schaltungsanordnung fuer fernmeldevermittlungsanlagen,insbesondere fernsprechvermittlungsanlagen mit schalteinrichtungen und ihnen gemeinsamen abfrageeinrichtungen