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IE810839L - Electronic intercommunication installations - Google Patents

Electronic intercommunication installations

Info

Publication number
IE810839L
IE810839L IE810839A IE83981A IE810839L IE 810839 L IE810839 L IE 810839L IE 810839 A IE810839 A IE 810839A IE 83981 A IE83981 A IE 83981A IE 810839 L IE810839 L IE 810839L
Authority
IE
Ireland
Prior art keywords
electronic intercommunication
installations
intercommunication installations
electronic
intercommunication
Prior art date
Application number
IE810839A
Other versions
IE51482B1 (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 IE810839L publication Critical patent/IE810839L/en
Publication of IE51482B1 publication Critical patent/IE51482B1/en

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)
IE839/81A 1980-04-16 1981-04-14 Improvements in or relating to electronic intercommunication installations IE51482B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8008671A FR2481033B1 (en) 1980-04-16 1980-04-16 ELECTRONIC INTERCOMMUNICATION INSTALLATION

Publications (2)

Publication Number Publication Date
IE810839L true IE810839L (en) 1981-10-16
IE51482B1 IE51482B1 (en) 1987-01-07

Family

ID=9241034

Family Applications (1)

Application Number Title Priority Date Filing Date
IE839/81A IE51482B1 (en) 1980-04-16 1981-04-14 Improvements in or relating to electronic intercommunication installations

Country Status (13)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59228828A (en) * 1983-06-11 1984-12-22 萱沢　文男 Fluorescent amount measuring apparatus of eye body
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
IT8121158A0 (en) 1981-04-14
DE3114977A1 (en) 1982-03-18
MX149212A (en) 1983-09-23
ES8203183A1 (en) 1982-03-01
IE51482B1 (en) 1987-01-07
FR2481033B1 (en) 1987-11-06
IT1137365B (en) 1986-09-10
FR2481033A1 (en) 1981-10-23
BE888435A (en) 1981-07-31
JPS579190A (en) 1982-01-18
PT72871B (en) 1982-03-29
ES501298A0 (en) 1982-03-01
SE8102382L (en) 1981-10-17
GB2075306A (en) 1981-11-11
GB2075306B (en) 1985-02-13
DK170081A (en) 1981-10-17
PT72871A (en) 1981-05-01
BR8102253A (en) 1981-11-24

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