AT14516B - Circuit arrangement for operating telephone auxiliary switching points. - Google Patents

Circuit arrangement for operating telephone auxiliary switching points.

Info

Publication number
AT14516B
AT14516B AT14516DA AT14516B AT 14516 B AT14516 B AT 14516B AT 14516D A AT14516D A AT 14516DA AT 14516 B AT14516 B AT 14516B
Authority
AT
Austria
Prior art keywords
circuit arrangement
switching points
auxiliary switching
operating telephone
telephone auxiliary
Prior art date
Application number
Other languages
German (de)
Original Assignee
Telephon Apparat Fabrik Petsch
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
Priority claimed from DE1900138298D external-priority patent/DE138298C/de
Application filed by Telephon Apparat Fabrik Petsch filed Critical Telephon Apparat Fabrik Petsch
Application granted granted Critical
Publication of AT14516B publication Critical patent/AT14516B/en

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

  

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AT14516D 1900-07-23 1902-05-14 Circuit arrangement for operating telephone auxiliary switching points. AT14516B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1900138298D DE138298C (en) 1900-07-23

Publications (1)

Publication Number Publication Date
AT14516B true AT14516B (en) 1903-12-28

Family

ID=5667238

Family Applications (1)

Application Number Title Priority Date Filing Date
AT14516D AT14516B (en) 1900-07-23 1902-05-14 Circuit arrangement for operating telephone auxiliary switching points.

Country Status (1)

Country Link
AT (1) AT14516B (en)

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