BE415296A - - Google Patents

Info

Publication number
BE415296A
BE415296A BE415296DA BE415296A BE 415296 A BE415296 A BE 415296A BE 415296D A BE415296D A BE 415296DA BE 415296 A BE415296 A BE 415296A
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 BE415296A publication Critical patent/BE415296A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
BE415296D 1935-04-30 BE415296A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2153313X 1935-04-30

Publications (1)

Publication Number Publication Date
BE415296A true BE415296A (xx)

Family

ID=7987537

Family Applications (1)

Application Number Title Priority Date Filing Date
BE415296D BE415296A (xx) 1935-04-30

Country Status (2)

Country Link
US (1) US2153313A (xx)
BE (1) BE415296A (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429911A (en) * 1942-04-20 1947-10-28 Automatic Elect Lab Multiexchange impulse repeating system
US2508412A (en) * 1945-03-29 1950-05-23 Bendix Aviat Corp Method of and apparatus for checking frequency characteristics
DE970916C (de) * 1952-12-18 1958-11-13 Standard Elek K Lorenz Ag UEbertragung von Signalen mittels Wechselstromimpulsen

Also Published As

Publication number Publication date
US2153313A (en) 1939-04-04

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