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Application filed by Kardorff LeonfiledCriticalKardorff Leon
Publication of CH171187ApublicationCriticalpatent/CH171187A/de
H04M1/00—Substation equipment, e.g. for use by subscribers
H04M1/26—Devices for calling a subscriber
H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
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Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
CH171187D1931-07-101932-01-06Stromstosssender zur Vermittlung der Herstellung von telephonischen Verbindungen.
CH171187A
(de)