BE485422A - - Google Patents

Info

Publication number
BE485422A
BE485422A BE485422DA BE485422A BE 485422 A BE485422 A BE 485422A BE 485422D A BE485422D A BE 485422DA BE 485422 A BE485422 A BE 485422A
Authority
BE
Belgium
Application number
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.)
Publication of BE485422A publication Critical patent/BE485422A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/40—Applications of speech amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
BE485422D 1948-04-06 BE485422A (US20030199744A1-20031023-C00003.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR277491X 1948-04-06

Publications (1)

Publication Number Publication Date
BE485422A true BE485422A (US20030199744A1-20031023-C00003.png)

Family

ID=8886465

Family Applications (1)

Application Number Title Priority Date Filing Date
BE485422D BE485422A (US20030199744A1-20031023-C00003.png) 1948-04-06

Country Status (2)

Country Link
BE (1) BE485422A (US20030199744A1-20031023-C00003.png)
CH (1) CH277491A (US20030199744A1-20031023-C00003.png)

Also Published As

Publication number Publication date
CH277491A (fr) 1951-08-31

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