BE709268A - - Google Patents

Info

Publication number
BE709268A
BE709268A BE709268DA BE709268A BE 709268 A BE709268 A BE 709268A BE 709268D A BE709268D A BE 709268DA BE 709268 A BE709268 A BE 709268A
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.)
Filing date
Publication date
Application filed filed Critical
Publication of BE709268A publication Critical patent/BE709268A/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
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
BE709268D 1967-01-13 1968-01-12 BE709268A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6700623A NL6700623A (fr) 1967-01-13 1967-01-13

Publications (1)

Publication Number Publication Date
BE709268A true BE709268A (fr) 1968-07-12

Family

ID=19798990

Family Applications (1)

Application Number Title Priority Date Filing Date
BE709268D BE709268A (fr) 1967-01-13 1968-01-12

Country Status (3)

Country Link
BE (1) BE709268A (fr)
DE (1) DE1562117A1 (fr)
NL (1) NL6700623A (fr)

Also Published As

Publication number Publication date
DE1562117A1 (de) 1970-03-12
NL6700623A (fr) 1968-07-15

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