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Filing date
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Application filed by Siemens AgfiledCriticalSiemens Ag
Application grantedgrantedCritical
Publication of AT178385BpublicationCriticalpatent/AT178385B/de
AT178385D1952-09-181952-09-18Schaltanordnung für Nebenstellenanlagen mit verschieden berechtigten, z. B. amts- und nichtamtsberechtigten Nebenstellen
AT178385B
(de)