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Application filed by Siemens AgfiledCriticalSiemens Ag
Application grantedgrantedCritical
Publication of AT178933BpublicationCriticalpatent/AT178933B/de
AT178933D1952-06-101953-01-20Schaltanordnung mit Stützrelais, Kipprelais od. dgl., insbesondere für die Zwecke des Eisenbahnsicherungswesens
AT178933B
(de)