BE600001A - Perfectionnements aux systèmes d'inter-communication - Google Patents

Perfectionnements aux systèmes d'inter-communication

Info

Publication number
BE600001A
BE600001A BE600001A BE600001A BE600001A BE 600001 A BE600001 A BE 600001A BE 600001 A BE600001 A BE 600001A BE 600001 A BE600001 A BE 600001A BE 600001 A BE600001 A BE 600001A
Authority
BE
Belgium
Prior art keywords
inter
communication systems
systems
communication
Prior art date
Application number
BE600001A
Other languages
English (en)
French (fr)
Original Assignee
Standard Telephon & Telegraph
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Standard Telephon & Telegraph filed Critical Standard Telephon & Telegraph
Publication of BE600001A publication Critical patent/BE600001A/fr

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
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/04—Arrangements for interconnection not involving centralised switching involving a separate line for each pair of parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
BE600001A 1960-02-10 1961-02-09 Perfectionnements aux systèmes d'inter-communication BE600001A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT102860A AT233634B (de) 1960-02-10 1960-02-10 Schaltungsanordnung für eine Wechselsprechanlage

Publications (1)

Publication Number Publication Date
BE600001A true BE600001A (fr) 1961-05-29

Family

ID=3505113

Family Applications (1)

Application Number Title Priority Date Filing Date
BE600001A BE600001A (fr) 1960-02-10 1961-02-09 Perfectionnements aux systèmes d'inter-communication

Country Status (5)

Country Link
AT (1) AT233634B (enrdf_load_stackoverflow)
BE (1) BE600001A (enrdf_load_stackoverflow)
CH (1) CH388390A (enrdf_load_stackoverflow)
DE (1) DE1164503B (enrdf_load_stackoverflow)
FR (1) FR1288163A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
CH388390A (de) 1965-02-28
DE1164503B (de) 1964-03-05
AT233634B (de) 1964-05-25
FR1288163A (enrdf_load_stackoverflow) 1962-02-12

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