FR959688A - - Google Patents

Info

Publication number
FR959688A
FR959688A FR959688DA FR959688A FR 959688 A FR959688 A FR 959688A FR 959688D A FR959688D A FR 959688DA FR 959688 A FR959688 A FR 959688A
Authority
FR
France
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
Application number
Other languages
French (fr)
Publication date
Application granted granted Critical
Publication of FR959688A publication Critical patent/FR959688A/fr
Expired legal-status Critical Current

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR959688D Expired FR959688A (en))

Publications (1)

Publication Number Publication Date
FR959688A true FR959688A (en)) 1950-03-31

Family

ID=1561537

Family Applications (1)

Application Number Title Priority Date Filing Date
FR959688D Expired FR959688A (en))

Country Status (1)

Country Link
FR (1) FR959688A (en))

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932502C (de) * 1951-07-13 1955-09-01 Ericsson Telefon Ab L M Schaltungsanordnung zur Nummernwahl ueber Verbindungsleitungen in Selbstanschlussfernsprechanlagen, insbesondere zur Stromstossgabe von Teilnehmer oder Beamtin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932502C (de) * 1951-07-13 1955-09-01 Ericsson Telefon Ab L M Schaltungsanordnung zur Nummernwahl ueber Verbindungsleitungen in Selbstanschlussfernsprechanlagen, insbesondere zur Stromstossgabe von Teilnehmer oder Beamtin

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