AT71459B - Circuit arrangement for telephone exchanges with semi-automatic operation. - Google Patents

Circuit arrangement for telephone exchanges with semi-automatic operation.

Info

Publication number
AT71459B
AT71459B AT71459DA AT71459B AT 71459 B AT71459 B AT 71459B AT 71459D A AT71459D A AT 71459DA AT 71459 B AT71459 B AT 71459B
Authority
AT
Austria
Prior art keywords
semi
circuit arrangement
automatic operation
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 AT71459B publication Critical patent/AT71459B/en

Links

AT71459D 1913-08-15 1914-08-14 Circuit arrangement for telephone exchanges with semi-automatic operation. AT71459B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE71459X 1913-08-15

Publications (1)

Publication Number Publication Date
AT71459B true AT71459B (en) 1916-03-27

Family

ID=5635800

Family Applications (1)

Application Number Title Priority Date Filing Date
AT71459D AT71459B (en) 1913-08-15 1914-08-14 Circuit arrangement for telephone exchanges with semi-automatic operation.

Country Status (1)

Country Link
AT (1) AT71459B (en)

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