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.)
Filing date
Publication date
Application filed by Brev O B Soc Civ DesfiledCriticalBrev O B Soc Civ Des
Publication of CH277496ApublicationCriticalpatent/CH277496A/fr
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
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Lock And Its Accessories
(AREA)
CH277496D1947-12-221948-12-20Appareil pour l'appel automatique d'un ou plusieurs numéros téléphoniques.
CH277496A
(fr)