BE511553A - - Google Patents

Info

Publication number
BE511553A
BE511553A BE511553DA BE511553A BE 511553 A BE511553 A BE 511553A BE 511553D A BE511553D A BE 511553DA BE 511553 A BE511553 A BE 511553A
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 BE511553A publication Critical patent/BE511553A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE511553D 1951-05-23 BE511553A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR304895X 1951-05-23

Publications (1)

Publication Number Publication Date
BE511553A true BE511553A (enrdf_load_html_response)

Family

ID=8888827

Family Applications (1)

Application Number Title Priority Date Filing Date
BE511553D BE511553A (enrdf_load_html_response) 1951-05-23

Country Status (2)

Country Link
BE (1) BE511553A (enrdf_load_html_response)
CH (1) CH304895A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1129543B (de) * 1958-06-25 1962-05-17 Gylling & Co Ab Schaltungsanordnung fuer sprachgesteuerte Wechselsprechanlagen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1129543B (de) * 1958-06-25 1962-05-17 Gylling & Co Ab Schaltungsanordnung fuer sprachgesteuerte Wechselsprechanlagen

Also Published As

Publication number Publication date
CH304895A (fr) 1955-01-31

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