FR40822E - Improvements to automatic telephone systems - Google Patents

Improvements to automatic telephone systems

Info

Publication number
FR40822E
FR40822E FR40822DA FR40822E FR 40822 E FR40822 E FR 40822E FR 40822D A FR40822D A FR 40822DA FR 40822 E FR40822 E FR 40822E
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 FR40822E publication Critical patent/FR40822E/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)
FR40822D 1931-09-28 1931-09-28 Improvements to automatic telephone systems Expired FR40822E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR40822T 1931-09-28

Publications (1)

Publication Number Publication Date
FR40822E true FR40822E (en) 1932-09-07

Family

ID=8677051

Family Applications (1)

Application Number Title Priority Date Filing Date
FR40822D Expired FR40822E (en) 1931-09-28 1931-09-28 Improvements to automatic telephone systems

Country Status (1)

Country Link
FR (1) FR40822E (en)

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