LU45451A1 - - Google Patents

Info

Publication number
LU45451A1
LU45451A1 LU45451DA LU45451A1 LU 45451 A1 LU45451 A1 LU 45451A1 LU 45451D A LU45451D A LU 45451DA LU 45451 A1 LU45451 A1 LU 45451A1
Authority
LU
Luxembourg
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.)
Filing date
Publication date
Application filed filed Critical
Publication of LU45451A1 publication Critical patent/LU45451A1/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/58Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625Arrangements in the private branch exchange

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Exchange Systems With Centralized Control (AREA)
LU45451D 1963-02-20 1964-02-18 LU45451A1 (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES83817A DE1176722B (de) 1963-02-20 1963-02-20 Schaltungsanordnung fuer Fernsprechvermitt-lungsanlagen mit Wahlzeichensendern fuer Ton-frequenzwahl an den Teilnehmerstellen

Publications (1)

Publication Number Publication Date
LU45451A1 true LU45451A1 (en:Method) 1964-04-18

Family

ID=7511281

Family Applications (1)

Application Number Title Priority Date Filing Date
LU45451D LU45451A1 (en:Method) 1963-02-20 1964-02-18

Country Status (7)

Country Link
US (1) US3427404A (en:Method)
BE (1) BE644137A (en:Method)
CH (1) CH410067A (en:Method)
DE (1) DE1176722B (en:Method)
GB (1) GB1007100A (en:Method)
LU (1) LU45451A1 (en:Method)
NL (2) NL146684B (en:Method)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1242672B (de) * 1964-09-10 1967-06-22 Siemens Ag Schaltungsanordnung fuer Fernmelde-, insbesondere Fernsprechanlagen, in denen von den Teilnehmerstellen Wahlkennzeichen und Informationskennzeichen ausgesendet werden
US3700823A (en) * 1971-09-02 1972-10-24 Northern Electric Co Combined alarm transmission and service call system
DE2450189B2 (de) * 1974-10-22 1976-08-26 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur einleitung einer informationsuebertragung zu einer aufnahmeeinrichtung waehrend einer ueber eine verbindungsleitung bestehenden fernsprechverbindung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133155A (en) * 1960-09-27 1964-05-12 Bell Telephone Labor Inc Signal converter circuit

Also Published As

Publication number Publication date
US3427404A (en) 1969-02-11
BE644137A (en:Method) 1964-08-20
CH410067A (de) 1966-03-31
NL302827A (en:Method)
GB1007100A (en) 1965-10-13
DE1176722B (de) 1964-08-27
NL146684B (nl) 1975-07-15

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