FR2178233B3 - - Google Patents

Info

Publication number
FR2178233B3
FR2178233B3 FR7311575A FR7311575A FR2178233B3 FR 2178233 B3 FR2178233 B3 FR 2178233B3 FR 7311575 A FR7311575 A FR 7311575A FR 7311575 A FR7311575 A FR 7311575A FR 2178233 B3 FR2178233 B3 FR 2178233B3
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7311575A
Other languages
French (fr)
Other versions
FR2178233A1 (OSRAM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2178233A1 publication Critical patent/FR2178233A1/fr
Application granted granted Critical
Publication of FR2178233B3 publication Critical patent/FR2178233B3/fr
Expired legal-status Critical Current

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)
FR7311575A 1972-03-30 1973-03-30 Expired FR2178233B3 (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA138,681A CA983184A (en) 1972-03-30 1972-03-30 Key telephone system

Publications (2)

Publication Number Publication Date
FR2178233A1 FR2178233A1 (OSRAM) 1973-11-09
FR2178233B3 true FR2178233B3 (OSRAM) 1976-03-26

Family

ID=4092836

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7311575A Expired FR2178233B3 (OSRAM) 1972-03-30 1973-03-30

Country Status (2)

Country Link
CA (1) CA983184A (OSRAM)
FR (1) FR2178233B3 (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358065A1 (fr) * 1976-07-09 1978-02-03 Barphone Sa Poste telephonique d'intercommunication, et installation telephonique comportant un tel poste

Also Published As

Publication number Publication date
FR2178233A1 (OSRAM) 1973-11-09
CA983184A (en) 1976-02-03

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Legal Events

Date Code Title Description
ST Notification of lapse