FR739532A - Improvements to automatic telephone systems - Google Patents

Improvements to automatic telephone systems

Info

Publication number
FR739532A
FR739532A FR739532DA FR739532A FR 739532 A FR739532 A FR 739532A FR 739532D A FR739532D A FR 739532DA FR 739532 A FR739532 A FR 739532A
Authority
FR
France
Prior art keywords
telephone systems
automatic telephone
automatic
systems
telephone
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)
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.)
Compagnie des Telephones Thomson Houston
Original Assignee
Compagnie des Telephones Thomson Houston
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 des Telephones Thomson Houston filed Critical Compagnie des Telephones Thomson Houston
Application granted granted Critical
Publication of FR739532A publication Critical patent/FR739532A/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)
FR739532D 1931-07-10 1931-07-10 Improvements to automatic telephone systems Expired FR739532A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR739532T 1931-07-10

Publications (1)

Publication Number Publication Date
FR739532A true FR739532A (en) 1933-01-13

Family

ID=9132786

Family Applications (1)

Application Number Title Priority Date Filing Date
FR739532D Expired FR739532A (en) 1931-07-10 1931-07-10 Improvements to automatic telephone systems

Country Status (1)

Country Link
FR (1) FR739532A (en)

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