BE370533A - - Google Patents

Info

Publication number
BE370533A
BE370533A BE370533DA BE370533A BE 370533 A BE370533 A BE 370533A BE 370533D A BE370533D A BE 370533DA BE 370533 A BE370533 A BE 370533A
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 BE370533A publication Critical patent/BE370533A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
BE370533D 1929-05-25 BE370533A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE696037X 1929-05-25

Publications (1)

Publication Number Publication Date
BE370533A true BE370533A (enrdf_load_stackoverflow)

Family

ID=6607604

Family Applications (1)

Application Number Title Priority Date Filing Date
BE370533D BE370533A (enrdf_load_stackoverflow) 1929-05-25

Country Status (2)

Country Link
BE (1) BE370533A (enrdf_load_stackoverflow)
FR (1) FR696037A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR696037A (fr) 1930-12-24

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