Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of DE214483CpublicationCriticalpatent/DE214483C/de
Schaltvorrichtung fuer Fernmeldeanlagen, insbesondere fuer Selbstanschlussfernsprechaemter, deren Antriebsvorrichtung durch ein Druckmittel bewegt wird