AT178385B - Switching arrangement for private branch exchanges with different authorized, z. B. officially authorized and unauthorized extensions - Google Patents

Switching arrangement for private branch exchanges with different authorized, z. B. officially authorized and unauthorized extensions

Info

Publication number
AT178385B
AT178385B AT178385DA AT178385B AT 178385 B AT178385 B AT 178385B AT 178385D A AT178385D A AT 178385DA AT 178385 B AT178385 B AT 178385B
Authority
AT
Austria
Prior art keywords
authorized
unauthorized
extensions
private branch
switching arrangement
Prior art date
Application number
Other languages
German (de)
Inventor
Hans Dipl Ing Tatzl
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT178385B publication Critical patent/AT178385B/en

Links

AT178385D 1952-09-18 1952-09-18 Switching arrangement for private branch exchanges with different authorized, z. B. officially authorized and unauthorized extensions AT178385B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT178385T 1952-09-18

Publications (1)

Publication Number Publication Date
AT178385B true AT178385B (en) 1954-05-10

Family

ID=3659793

Family Applications (1)

Application Number Title Priority Date Filing Date
AT178385D AT178385B (en) 1952-09-18 1952-09-18 Switching arrangement for private branch exchanges with different authorized, z. B. officially authorized and unauthorized extensions

Country Status (1)

Country Link
AT (1) AT178385B (en)

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