DE280045C - - Google Patents

Info

Publication number
DE280045C
DE280045C DENDAT280045D DE280045DA DE280045C DE 280045 C DE280045 C DE 280045C DE NDAT280045 D DENDAT280045 D DE NDAT280045D DE 280045D A DE280045D A DE 280045DA DE 280045 C DE280045 C DE 280045C
Authority
DE
Germany
Prior art keywords
line
telephone
station
circuit
primary
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
DENDAT280045D
Other languages
German (de)
English (en)
Publication of DE280045C publication Critical patent/DE280045C/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
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
DENDAT280045D Active DE280045C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE280045C true DE280045C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=535916

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT280045D Active DE280045C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE280045C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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