FR1087541A - Improvements to telephone systems - Google Patents

Improvements to telephone systems

Info

Publication number
FR1087541A
FR1087541A FR1087541DA FR1087541A FR 1087541 A FR1087541 A FR 1087541A FR 1087541D A FR1087541D A FR 1087541DA FR 1087541 A FR1087541 A FR 1087541A
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)
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.)
Societe des Telephones Ericsson SA
Original Assignee
Societe des Telephones Ericsson 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 Societe des Telephones Ericsson SA filed Critical Societe des Telephones Ericsson SA
Application granted granted Critical
Publication of FR1087541A publication Critical patent/FR1087541A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR1087541D 1953-09-21 1953-09-21 Improvements to telephone systems Expired FR1087541A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1087541T 1953-09-21

Publications (1)

Publication Number Publication Date
FR1087541A true FR1087541A (en) 1955-02-24

Family

ID=9613380

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1087541D Expired FR1087541A (en) 1953-09-21 1953-09-21 Improvements to telephone systems

Country Status (1)

Country Link
FR (1) FR1087541A (en)

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