BE494409A - - Google Patents

Info

Publication number
BE494409A
BE494409A BE494409DA BE494409A BE 494409 A BE494409 A BE 494409A BE 494409D A BE494409D A BE 494409DA BE 494409 A BE494409 A BE 494409A
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 BE494409A publication Critical patent/BE494409A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
BE494409D 1949-04-25 BE494409A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1011927T 1949-04-25

Publications (1)

Publication Number Publication Date
BE494409A true BE494409A (de)

Family

ID=9570365

Family Applications (1)

Application Number Title Priority Date Filing Date
BE494409D BE494409A (de) 1949-04-25

Country Status (2)

Country Link
BE (1) BE494409A (de)
FR (1) FR1011927A (de)

Also Published As

Publication number Publication date
FR1011927A (fr) 1952-07-01

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