DE138298C - - Google Patents

Info

Publication number
DE138298C
DE138298C DE1900138298D DE138298DA DE138298C DE 138298 C DE138298 C DE 138298C DE 1900138298 D DE1900138298 D DE 1900138298D DE 138298D A DE138298D A DE 138298DA DE 138298 C DE138298 C DE 138298C
Authority
DE
Germany
Prior art keywords
line
main
battery
main office
secondary switching
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.)
Expired - Lifetime
Application number
DE1900138298D
Other languages
German (de)
English (en)
Filing date
Publication of DE138298C publication Critical patent/DE138298C/de
Application filed filed Critical
Priority to AT14516D priority Critical patent/AT14516B/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
DE1900138298D 1900-07-23 1900-07-23 Expired - Lifetime DE138298C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT14516D AT14516B (de) 1900-07-23 1902-05-14 Schaltungsanordnung zum Betriebe von Fernsprech-Nebenumschaltstellen.

Publications (1)

Publication Number Publication Date
DE138298C true DE138298C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=406120

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1900138298D Expired - Lifetime DE138298C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1900-07-23 1900-07-23

Country Status (1)

Country Link
DE (1) DE138298C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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