DE173531C - - Google Patents

Info

Publication number
DE173531C
DE173531C DENDAT173531D DE173531DA DE173531C DE 173531 C DE173531 C DE 173531C DE NDAT173531 D DENDAT173531 D DE NDAT173531D DE 173531D A DE173531D A DE 173531DA DE 173531 C DE173531 C DE 173531C
Authority
DE
Germany
Prior art keywords
battery
line
relay
call
circuit
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
DENDAT173531D
Other languages
German (de)
English (en)
Publication of DE173531C publication Critical patent/DE173531C/de
Active 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)
DENDAT173531D Active DE173531C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE173531C true DE173531C (enrdf_load_stackoverflow)

Family

ID=438332

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT173531D Active DE173531C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE173531C (enrdf_load_stackoverflow)

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