FR1012558A - - Google Patents

Info

Publication number
FR1012558A
FR1012558A FR1012558DA FR1012558A FR 1012558 A FR1012558 A FR 1012558A FR 1012558D A FR1012558D A FR 1012558DA FR 1012558 A FR1012558 A FR 1012558A
Authority
FR
France
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)
Publication date
Application granted granted Critical
Publication of FR1012558A publication Critical patent/FR1012558A/fr
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)
FR1012558D Expired FR1012558A (zh)

Publications (1)

Publication Number Publication Date
FR1012558A true FR1012558A (zh) 1952-07-23

Family

ID=1567439

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1012558D Expired FR1012558A (zh)

Country Status (1)

Country Link
FR (1) FR1012558A (zh)

Similar Documents

Publication Publication Date Title
FR1012558A (zh)
BE508483A (zh)
BE509861A (zh)
BE511960A (zh)
BE512796A (zh)
BE513249A (zh)
BE514892A (zh)
BE515369A (zh)
BE515392A (zh)
BE515417A (zh)
BE516688A (zh)
BE516865A (zh)
BE516963A (zh)
BE517271A (zh)
BE517409A (zh)
BE517433A (zh)
BE517520A (zh)
BE517653A (zh)
BE517728A (zh)
BE517737A (zh)
BE517791A (zh)
BE517938A (zh)
BE518365A (zh)
BE518381A (zh)
BE518493A (zh)