FR991449A - Private telephone installation - Google Patents

Private telephone installation

Info

Publication number
FR991449A
FR991449A FR991449DA FR991449A FR 991449 A FR991449 A FR 991449A FR 991449D A FR991449D A FR 991449DA FR 991449 A FR991449 A FR 991449A
Authority
FR
France
Prior art keywords
private telephone
telephone installation
installation
private
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)
Inventor
Karl Ingemar Bertil Legerth
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 filed Critical
Application granted granted Critical
Publication of FR991449A publication Critical patent/FR991449A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR991449D 1949-07-28 1949-07-28 Private telephone installation Expired FR991449A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR991449T 1949-07-28

Publications (1)

Publication Number Publication Date
FR991449A true FR991449A (en) 1951-10-05

Family

ID=9552246

Family Applications (1)

Application Number Title Priority Date Filing Date
FR991449D Expired FR991449A (en) 1949-07-28 1949-07-28 Private telephone installation

Country Status (1)

Country Link
FR (1) FR991449A (en)

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