CH260449A - Number switch. - Google Patents

Number switch.

Info

Publication number
CH260449A
CH260449A CH260449DA CH260449A CH 260449 A CH260449 A CH 260449A CH 260449D A CH260449D A CH 260449DA CH 260449 A CH260449 A CH 260449A
Authority
CH
Switzerland
Prior art keywords
number switch
switch
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Autophon
Original Assignee
Autophon Ag
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 Autophon Ag filed Critical Autophon Ag
Publication of CH260449A publication Critical patent/CH260449A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • 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)
  • Transceivers (AREA)
  • Telephone Set Structure (AREA)
  • Exchange Systems With Centralized Control (AREA)
CH260449D 1943-09-13 1943-09-13 Number switch. CH260449A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH609478X 1943-09-13

Publications (1)

Publication Number Publication Date
CH260449A true CH260449A (en) 1949-03-15

Family

ID=4523298

Family Applications (1)

Application Number Title Priority Date Filing Date
CH260449D CH260449A (en) 1943-09-13 1943-09-13 Number switch.

Country Status (2)

Country Link
CH (1) CH260449A (en)
GB (1) GB609478A (en)

Also Published As

Publication number Publication date
GB609478A (en) 1948-10-01

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