CH470116A - Nummernschalter für Fernmelde-, insbesondere Fernsprechgeräte
- Google Patents
Nummernschalter für Fernmelde-, insbesondere Fernsprechgeräte
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Publication number
CH470116A
CH470116ACH1449667ACH1449667ACH470116ACH 470116 ACH470116 ACH 470116ACH 1449667 ACH1449667 ACH 1449667ACH 1449667 ACH1449667 ACH 1449667ACH 470116 ACH470116 ACH 470116A
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 Int Standard Electric CorpfiledCriticalInt Standard Electric Corp
Publication of CH470116ApublicationCriticalpatent/CH470116A/de
H04M1/00—Substation equipment, e.g. for use by subscribers
H04M1/26—Devices for calling a subscriber
H04M1/30—Devices which can set up and transmit only one digit at a time
H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Transmission Devices
(AREA)
Push-Button Switches
(AREA)
Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like
(AREA)
CH1449667A1966-10-201967-10-17Nummernschalter für Fernmelde-, insbesondere Fernsprechgeräte
CH470116A
(de)