AT9919B - Circuit arrangement for deactivating the call signals on telephone exchanges. - Google Patents

Circuit arrangement for deactivating the call signals on telephone exchanges.

Info

Publication number
AT9919B
AT9919B AT9919DA AT9919B AT 9919 B AT9919 B AT 9919B AT 9919D A AT9919D A AT 9919DA AT 9919 B AT9919 B AT 9919B
Authority
AT
Austria
Prior art keywords
deactivating
circuit arrangement
call signals
telephone exchanges
exchanges
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 AT9919B publication Critical patent/AT9919B/en

Links

Landscapes

  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Description

  

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AT9919D 1901-10-18 1901-10-18 Circuit arrangement for deactivating the call signals on telephone exchanges. AT9919B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT9919T 1901-10-18

Publications (1)

Publication Number Publication Date
AT9919B true AT9919B (en) 1902-11-25

Family

ID=3504432

Family Applications (1)

Application Number Title Priority Date Filing Date
AT9919D AT9919B (en) 1901-10-18 1901-10-18 Circuit arrangement for deactivating the call signals on telephone exchanges.

Country Status (1)

Country Link
AT (1) AT9919B (en)

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