FR997787A - Improvements to telephone connection manuals - Google Patents

Improvements to telephone connection manuals

Info

Publication number
FR997787A
FR997787A FR997787DA FR997787A FR 997787 A FR997787 A FR 997787A FR 997787D A FR997787D A FR 997787DA FR 997787 A FR997787 A FR 997787A
Authority
FR
France
Prior art keywords
manuals
telephone connection
telephone
connection
connection manuals
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
Edmond-Louis Etienne
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite 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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Application granted granted Critical
Publication of FR997787A publication Critical patent/FR997787A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M5/00—Manual exchanges
    • H04M5/10—Manual exchanges using separate plug for each subscriber
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR997787D 1945-07-25 1945-07-25 Improvements to telephone connection manuals Expired FR997787A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR997787T 1945-07-25

Publications (1)

Publication Number Publication Date
FR997787A true FR997787A (en) 1952-01-10

Family

ID=9558887

Family Applications (1)

Application Number Title Priority Date Filing Date
FR997787D Expired FR997787A (en) 1945-07-25 1945-07-25 Improvements to telephone connection manuals

Country Status (1)

Country Link
FR (1) FR997787A (en)

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