BE636631A - - Google Patents

Info

Publication number
BE636631A
BE636631A BE636631DA BE636631A BE 636631 A BE636631 A BE 636631A BE 636631D A BE636631D A BE 636631DA BE 636631 A BE636631 A BE 636631A
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 BE636631A publication Critical patent/BE636631A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/677—Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
BE636631D 1962-08-28 BE636631A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR907986A FR1332465A (fr) 1962-08-28 1962-08-28 Dispositif de limitation des appels téléphoniques et téléphones munis du présent dispositif ou dispositif similaire

Publications (1)

Publication Number Publication Date
BE636631A true BE636631A (enrdf_load_stackoverflow)

Family

ID=8785859

Family Applications (1)

Application Number Title Priority Date Filing Date
BE636631D BE636631A (enrdf_load_stackoverflow) 1962-08-28

Country Status (5)

Country Link
BE (1) BE636631A (enrdf_load_stackoverflow)
CH (1) CH403872A (enrdf_load_stackoverflow)
DE (1) DE1206486B (enrdf_load_stackoverflow)
FR (1) FR1332465A (enrdf_load_stackoverflow)
GB (1) GB1018274A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1268215B (de) * 1965-11-26 1968-05-16 Christos Stathacopoulos Vorrichtung an einem Fernsprechapparat zum Sperren des Apparates fuer Selbstwaehlferngespraeche
GB2124453A (en) * 1982-07-30 1984-02-15 Shamshad Mohammed Khan Telephone monitoring device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1749067U (de) * 1957-05-17 1957-07-25 Hagenuk Vorm Neufeldt & Kuehnk Schrittschaltwerk, vorzugsweise fuer sperrnummernschalter von muenzfernsprechern.

Also Published As

Publication number Publication date
DE1206486B (de) 1965-12-09
CH403872A (fr) 1965-12-15
FR1332465A (fr) 1963-07-12
GB1018274A (en) 1966-01-26

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