BE803833A - Auto-commutateur prive pour etre connecte a des postes telephoniques a selection - Google Patents

Auto-commutateur prive pour etre connecte a des postes telephoniques a selection

Info

Publication number
BE803833A
BE803833A BE134778A BE134778A BE803833A BE 803833 A BE803833 A BE 803833A BE 134778 A BE134778 A BE 134778A BE 134778 A BE134778 A BE 134778A BE 803833 A BE803833 A BE 803833A
Authority
BE
Belgium
Prior art keywords
switch
selected telephone
telephone stations
private
auto
Prior art date
Application number
BE134778A
Other languages
English (en)
French (fr)
Inventor
A Feiner
A M Gerrish
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of BE803833A publication Critical patent/BE803833A/xx

Links

Classifications

    • 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
    • H04M9/006—Exchange line circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
BE134778A 1972-08-23 1973-08-21 Auto-commutateur prive pour etre connecte a des postes telephoniques a selection BE803833A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28292172A 1972-08-23 1972-08-23

Publications (1)

Publication Number Publication Date
BE803833A true BE803833A (fr) 1973-12-17

Family

ID=23083695

Family Applications (1)

Application Number Title Priority Date Filing Date
BE134778A BE803833A (fr) 1972-08-23 1973-08-21 Auto-commutateur prive pour etre connecte a des postes telephoniques a selection

Country Status (11)

Country Link
US (1) US3795776A (Direct)
JP (1) JPS5830794B2 (Direct)
AU (1) AU5933173A (Direct)
BE (1) BE803833A (Direct)
CA (1) CA984982A (Direct)
DE (1) DE2341827C2 (Direct)
FR (1) FR2197293B1 (Direct)
GB (1) GB1436460A (Direct)
IT (1) IT994635B (Direct)
NL (1) NL7311384A (Direct)
SE (1) SE394170B (Direct)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991282A (en) * 1974-12-27 1976-11-09 Feil Thomas E Multi station telephone switching system
US4677662A (en) * 1984-08-23 1987-06-30 Lott Thomas M Multiple line self-contained telephone

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239610A (en) * 1962-12-26 1966-03-08 Bell Telephone Labor Inc Line circuit for key telephone system
US3283083A (en) * 1963-03-13 1966-11-01 American Telephone & Telegraph Telephone subscriber's line circuit
US3436488A (en) * 1966-03-17 1969-04-01 Bell Telephone Labor Inc Line circuit for a key telephone system utilizing a single multifunction supervisory relay
US3647983A (en) * 1969-08-25 1972-03-07 San Bar Electronics Corp Key system line card circuit

Also Published As

Publication number Publication date
GB1436460A (en) 1976-05-19
FR2197293B1 (Direct) 1977-09-16
DE2341827A1 (de) 1974-03-07
NL7311384A (Direct) 1974-02-26
CA984982A (en) 1976-03-02
JPS4965110A (Direct) 1974-06-24
JPS5830794B2 (ja) 1983-07-01
SE394170B (sv) 1977-06-06
DE2341827C2 (de) 1983-06-09
FR2197293A1 (Direct) 1974-03-22
AU5933173A (en) 1975-02-20
US3795776A (en) 1974-03-05
IT994635B (it) 1975-10-20

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