FR55648E - Improvements to telephone systems - Google Patents

Improvements to telephone systems

Info

Publication number
FR55648E
FR55648E FR55648DA FR55648E FR 55648 E FR55648 E FR 55648E FR 55648D A FR55648D A FR 55648DA FR 55648 E FR55648 E FR 55648E
Authority
FR
France
Prior art keywords
telephone systems
telephone
systems
Prior art date
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
Other languages
French (fr)
Inventor
Henri-Louis Lesigne
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Application granted granted Critical
Publication of FR55648E publication Critical patent/FR55648E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR55648D 1943-04-23 1943-04-23 Improvements to telephone systems Expired FR55648E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR55648T 1943-04-23

Publications (1)

Publication Number Publication Date
FR55648E true FR55648E (en) 1952-09-02

Family

ID=8689952

Family Applications (1)

Application Number Title Priority Date Filing Date
FR55648D Expired FR55648E (en) 1943-04-23 1943-04-23 Improvements to telephone systems

Country Status (1)

Country Link
FR (1) FR55648E (en)

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