AT23474B - Circuit for the operation of telephone auxiliary switching points. - Google Patents

Circuit for the operation of telephone auxiliary switching points.

Info

Publication number
AT23474B
AT23474B AT23474DA AT23474B AT 23474 B AT23474 B AT 23474B AT 23474D A AT23474D A AT 23474DA AT 23474 B AT23474 B AT 23474B
Authority
AT
Austria
Prior art keywords
circuit
switching points
auxiliary switching
telephone auxiliary
telephone
Prior art date
Application number
Other languages
German (de)
Original Assignee
Zwietusch E & Co Gmbh
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 DE1903158799D external-priority patent/DE158799C/de
Application filed by Zwietusch E & Co Gmbh filed Critical Zwietusch E & Co Gmbh
Application granted granted Critical
Publication of AT23474B publication Critical patent/AT23474B/en

Links

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  • Alarm Systems (AREA)

Description

  

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Claims (1)

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AT23474D 1903-11-12 1905-03-27 Circuit for the operation of telephone auxiliary switching points. AT23474B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1903158799D DE158799C (en) 1903-11-12

Publications (1)

Publication Number Publication Date
AT23474B true AT23474B (en) 1906-03-10

Family

ID=5679855

Family Applications (1)

Application Number Title Priority Date Filing Date
AT23474D AT23474B (en) 1903-11-12 1905-03-27 Circuit for the operation of telephone auxiliary switching points.

Country Status (1)

Country Link
AT (1) AT23474B (en)

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