BE444056A - - Google Patents

Info

Publication number
BE444056A
BE444056A BE444056DA BE444056A BE 444056 A BE444056 A BE 444056A BE 444056D A BE444056D A BE 444056DA BE 444056 A BE444056 A BE 444056A
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 BE444056A publication Critical patent/BE444056A/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/66Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/677Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/26Devices for calling a subscriber
    • H04M1/27Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromechanical Clocks (AREA)
BE444056D 1941-01-11 BE444056A (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL5282D DE881062C (de) 1941-01-11 1941-01-11 Elektromotorisch angetriebener Stromstossgeber mit dekadischem System und Klartextanzeigevorrichtung fuer Fernsprech-Kommandoanlagen

Publications (1)

Publication Number Publication Date
BE444056A true BE444056A (ko)

Family

ID=7256763

Family Applications (1)

Application Number Title Priority Date Filing Date
BE444056D BE444056A (ko) 1941-01-11

Country Status (2)

Country Link
BE (1) BE444056A (ko)
DE (1) DE881062C (ko)

Also Published As

Publication number Publication date
DE881062C (de) 1953-08-03

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