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 filedfiledCritical
Publication of BE722706ApublicationCriticalpatent/BE722706A/xx
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
H04M1/278—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 using punched cards or tapes
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Credit Cards Or The Like
(AREA)
Control Of Vending Devices And Auxiliary Devices For Vending Devices
(AREA)