BE431841A - - Google Patents

Info

Publication number
BE431841A
BE431841A BE431841DA BE431841A BE 431841 A BE431841 A BE 431841A BE 431841D A BE431841D A BE 431841DA BE 431841 A BE431841 A BE 431841A
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 BE431841A publication Critical patent/BE431841A/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J1/00Frequency-division multiplex systems
    • H04J1/02Details
    • H04J1/14Arrangements providing for calling or supervisory signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
BE431841D 1937-12-27 1938-12-24 BE431841A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE206314X 1937-12-27

Publications (1)

Publication Number Publication Date
BE431841A true BE431841A (en) 1939-01-31

Family

ID=5791837

Family Applications (1)

Application Number Title Priority Date Filing Date
BE431841D BE431841A (en) 1937-12-27 1938-12-24

Country Status (4)

Country Link
BE (1) BE431841A (en)
CH (1) CH206314A (en)
FR (1) FR848013A (en)
GB (1) GB523066A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564378A (en) * 1946-05-06 1951-08-14 Punch Engineering Pty Ltd Carrier system signaling circuits
BE482215A (en) * 1947-04-29

Also Published As

Publication number Publication date
GB523066A (en) 1940-07-04
CH206314A (en) 1939-07-31
FR848013A (en) 1939-10-20

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