AT72187B - Circuit arrangement for automatic or semi-automatic telephone systems with separate adjustment and speech channels. - Google Patents

Circuit arrangement for automatic or semi-automatic telephone systems with separate adjustment and speech channels.

Info

Publication number
AT72187B
AT72187B AT72187DA AT72187B AT 72187 B AT72187 B AT 72187B AT 72187D A AT72187D A AT 72187DA AT 72187 B AT72187 B AT 72187B
Authority
AT
Austria
Prior art keywords
automatic
semi
circuit arrangement
telephone systems
separate adjustment
Prior art date
Application number
Other languages
German (de)
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 AT72187B publication Critical patent/AT72187B/en

Links

Landscapes

  • Telephonic Communication Services (AREA)

Description

  

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Claims (1)

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AT72187D 1913-12-11 1915-01-30 Circuit arrangement for automatic or semi-automatic telephone systems with separate adjustment and speech channels. AT72187B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE72186X 1913-12-11
DE72187X 1914-02-12

Publications (1)

Publication Number Publication Date
AT72187B true AT72187B (en) 1916-07-25

Family

ID=25749603

Family Applications (1)

Application Number Title Priority Date Filing Date
AT72187D AT72187B (en) 1913-12-11 1915-01-30 Circuit arrangement for automatic or semi-automatic telephone systems with separate adjustment and speech channels.

Country Status (1)

Country Link
AT (1) AT72187B (en)

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