SE7200070L - - Google Patents

Info

Publication number
SE7200070L
SE7200070L SE7200070A SE7200070A SE7200070L SE 7200070 L SE7200070 L SE 7200070L SE 7200070 A SE7200070 A SE 7200070A SE 7200070 A SE7200070 A SE 7200070A SE 7200070 L SE7200070 L SE 7200070L
Authority
SE
Sweden
Application number
SE7200070A
Publication date
Publication of SE7200070L publication Critical patent/SE7200070L/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
SE7200070A SE7200070L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7200070T

Publications (1)

Publication Number Publication Date
SE7200070L true SE7200070L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-07-19

Family

ID=44679691

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7200070A SE7200070L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
SE (1) SE7200070L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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