FR655242A - Improvements to automatic telephone systems - Google Patents

Improvements to automatic telephone systems

Info

Publication number
FR655242A
FR655242A FR655242DA FR655242A FR 655242 A FR655242 A FR 655242A FR 655242D A FR655242D A FR 655242DA FR 655242 A FR655242 A FR 655242A
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 FR655242A publication Critical patent/FR655242A/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)
FR655242D 1927-04-30 1927-04-30 Improvements to automatic telephone systems Expired FR655242A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR655242T 1927-04-30

Publications (1)

Publication Number Publication Date
FR655242A true FR655242A (en) 1929-04-16

Family

ID=9006991

Family Applications (1)

Application Number Title Priority Date Filing Date
FR655242D Expired FR655242A (en) 1927-04-30 1927-04-30 Improvements to automatic telephone systems

Country Status (1)

Country Link
FR (1) FR655242A (en)

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