AT181634B - Circuit arrangement for switching devices in telecommunications, in particular telephone systems, which evaluate the differences in the length of current surges and / or current surge pauses - Google Patents

Circuit arrangement for switching devices in telecommunications, in particular telephone systems, which evaluate the differences in the length of current surges and / or current surge pauses

Info

Publication number
AT181634B
AT181634B AT181634DA AT181634B AT 181634 B AT181634 B AT 181634B AT 181634D A AT181634D A AT 181634DA AT 181634 B AT181634 B AT 181634B
Authority
AT
Austria
Prior art keywords
current
pauses
telecommunications
evaluate
differences
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 AT181634B publication Critical patent/AT181634B/en

Links

AT181634D 1952-04-08 1953-03-09 Circuit arrangement for switching devices in telecommunications, in particular telephone systems, which evaluate the differences in the length of current surges and / or current surge pauses AT181634B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE181634T 1952-04-08

Publications (1)

Publication Number Publication Date
AT181634B true AT181634B (en) 1955-04-12

Family

ID=29431282

Family Applications (1)

Application Number Title Priority Date Filing Date
AT181634D AT181634B (en) 1952-04-08 1953-03-09 Circuit arrangement for switching devices in telecommunications, in particular telephone systems, which evaluate the differences in the length of current surges and / or current surge pauses

Country Status (1)

Country Link
AT (1) AT181634B (en)

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