BE888435A - Installation d'intercommunication electronique, - Google Patents

Installation d'intercommunication electronique,

Info

Publication number
BE888435A
BE888435A BE0/204495A BE204495A BE888435A BE 888435 A BE888435 A BE 888435A BE 0/204495 A BE0/204495 A BE 0/204495A BE 204495 A BE204495 A BE 204495A BE 888435 A BE888435 A BE 888435A
Authority
BE
Belgium
Prior art keywords
intercommunication installation
electronic intercommunication
electronic
installation
intercommunication
Prior art date
Application number
BE0/204495A
Other languages
English (en)
Original Assignee
Telephonie Ind Commerciale
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 Telephonie Ind Commerciale filed Critical Telephonie Ind Commerciale
Publication of BE888435A publication Critical patent/BE888435A/fr

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
    • H04M9/007—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 wherein the key telephone sets are star-connected to a central unit by a limited number of lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
BE0/204495A 1980-04-16 1981-04-15 Installation d'intercommunication electronique, BE888435A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8008671A FR2481033B1 (fr) 1980-04-16 1980-04-16 Installation d'intercommunication electronique

Publications (1)

Publication Number Publication Date
BE888435A true BE888435A (fr) 1981-07-31

Family

ID=9241034

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/204495A BE888435A (fr) 1980-04-16 1981-04-15 Installation d'intercommunication electronique,

Country Status (13)

Country Link
JP (1) JPS579190A (fr)
BE (1) BE888435A (fr)
BR (1) BR8102253A (fr)
DE (1) DE3114977A1 (fr)
DK (1) DK170081A (fr)
ES (1) ES501298A0 (fr)
FR (1) FR2481033B1 (fr)
GB (1) GB2075306B (fr)
IE (1) IE51482B1 (fr)
IT (1) IT1137365B (fr)
MX (1) MX149212A (fr)
PT (1) PT72871B (fr)
SE (1) SE8102382L (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59228828A (ja) * 1983-06-11 1984-12-22 萱沢　文男 眼体の螢光量測定装置
US4638124A (en) * 1984-09-21 1987-01-20 Itt Corporation Key telephone system with distributed control

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119606A (en) * 1977-03-28 1978-10-19 Toshiba Corp Double concentrating transmission system of tree-pair line
US4112261A (en) * 1977-05-16 1978-09-05 The Anaconda Company Key telephone system and method

Also Published As

Publication number Publication date
FR2481033B1 (fr) 1987-11-06
JPS579190A (en) 1982-01-18
PT72871B (fr) 1982-03-29
FR2481033A1 (fr) 1981-10-23
BR8102253A (pt) 1981-11-24
SE8102382L (sv) 1981-10-17
GB2075306A (en) 1981-11-11
PT72871A (fr) 1981-05-01
DE3114977A1 (de) 1982-03-18
GB2075306B (en) 1985-02-13
IE51482B1 (en) 1987-01-07
IT1137365B (it) 1986-09-10
IE810839L (en) 1981-10-16
ES8203183A1 (es) 1982-03-01
DK170081A (da) 1981-10-17
MX149212A (es) 1983-09-23
ES501298A0 (es) 1982-03-01
IT8121158A0 (it) 1981-04-14

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: LA TELEPHONIE INDUSTRIELLE ET COMMERCIALE

Effective date: 19910430