BE563969A - - Google Patents

Info

Publication number
BE563969A
BE563969A BE563969DA BE563969A BE 563969 A BE563969 A BE 563969A BE 563969D A BE563969D A BE 563969DA BE 563969 A BE563969 A BE 563969A
Authority
BE
Belgium
Application number
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.)
Publication of BE563969A publication Critical patent/BE563969A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • 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
    • 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
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
BE563969D 1957-01-14 BE563969A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US633948A US2897285A (en) 1957-01-14 1957-01-14 Intercommunicating system

Publications (1)

Publication Number Publication Date
BE563969A true BE563969A (ja)

Family

ID=24541819

Family Applications (1)

Application Number Title Priority Date Filing Date
BE563969D BE563969A (ja) 1957-01-14

Country Status (4)

Country Link
US (1) US2897285A (ja)
BE (1) BE563969A (ja)
DE (1) DE1182305B (ja)
FR (1) FR1197810A (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10112462B4 (de) * 1999-08-27 2006-08-31 Helmut Schaepe Verfahren und erweiterte Schaltungsanordnung für die Ergänzungsschaltung zum Anschließen von 2 Telefone an einer Telefonleitung mit eigener Ruf-Nr. auch mit Verbindung untereinander

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE640495C (de) * 1933-05-20 1937-01-06 Lorenz Akt Ges C Schaltanordnung fuer Wahlfernsprechanlagen
BE467114A (ja) * 1944-07-21
DE933396C (de) * 1953-05-08 1955-09-22 Normalzeit G M B H Schaltungsanordnung fuer Fernsprechlinienwaehleranlagen
DE1006014B (de) * 1954-03-24 1957-04-11 Allg Telefon Fabrik G M B H Schaltungsanordnung fuer Fernsprechanlagen, deren Teilnehmerleitungen wahlweise an eine Reihenanlage oder an eine Linienwaehleranlage angeschlossen werden koennen

Also Published As

Publication number Publication date
US2897285A (en) 1959-07-28
FR1197810A (fr) 1959-12-03
DE1182305B (de) 1964-11-26

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