DE196921C - - Google Patents

Info

Publication number
DE196921C
DE196921C DENDAT196921D DE196921DA DE196921C DE 196921 C DE196921 C DE 196921C DE NDAT196921 D DENDAT196921 D DE NDAT196921D DE 196921D A DE196921D A DE 196921DA DE 196921 C DE196921 C DE 196921C
Authority
DE
Germany
Prior art keywords
relay
call
subscriber
battery
isolating
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
DENDAT196921D
Other languages
German (de)
English (en)
Publication of DE196921C publication Critical patent/DE196921C/de
Active legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M9/00Arrangements for interconnection not involving centralised switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
DENDAT196921D Active DE196921C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE196921C true DE196921C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=459852

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT196921D Active DE196921C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE196921C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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