FR81431E - - Google Patents

Info

Publication number
FR81431E
FR81431E FR891904A FR891904A FR81431E FR 81431 E FR81431 E FR 81431E FR 891904 A FR891904 A FR 891904A FR 891904 A FR891904 A FR 891904A FR 81431 E FR81431 E FR 81431E
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
FR891904A
Other languages
French (fr)
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
Priority claimed from AT102860A external-priority patent/AT233634B/de
Priority claimed from AT240561A external-priority patent/AT227788B/de
Application filed filed Critical
Application granted granted Critical
Publication of FR81431E publication Critical patent/FR81431E/fr
Expired legal-status Critical Current

Links

Classifications

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR891904A 1960-02-10 1962-03-22 Expired FR81431E (xx)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT102860A AT233634B (de) 1960-02-10 1960-02-10 Schaltungsanordnung für eine Wechselsprechanlage
AT240561A AT227788B (de) 1961-03-23 1961-03-23 Schaltungsanordnung zur Nachrichtenübermittlung, insbesondere für Wechselsprechanlagen

Publications (1)

Publication Number Publication Date
FR81431E true FR81431E (xx) 1963-08-12

Family

ID=25594636

Family Applications (1)

Application Number Title Priority Date Filing Date
FR891904A Expired FR81431E (xx) 1960-02-10 1962-03-22

Country Status (1)

Country Link
FR (1) FR81431E (xx)

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