FR972678A - Improvements to telephone systems - Google Patents

Improvements to telephone systems

Info

Publication number
FR972678A
FR972678A FR972678DA FR972678A FR 972678 A FR972678 A FR 972678A FR 972678D A FR972678D A FR 972678DA FR 972678 A FR972678 A FR 972678A
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
Fernand-Pierre Gohorel
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil 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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Application granted granted Critical
Publication of FR972678A publication Critical patent/FR972678A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR972678D 1948-09-01 1948-09-01 Improvements to telephone systems Expired FR972678A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR972678T 1948-09-01

Publications (1)

Publication Number Publication Date
FR972678A true FR972678A (en) 1951-02-01

Family

ID=9516159

Family Applications (1)

Application Number Title Priority Date Filing Date
FR972678D Expired FR972678A (en) 1948-09-01 1948-09-01 Improvements to telephone systems

Country Status (1)

Country Link
FR (1) FR972678A (en)

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