BE416678A - - Google Patents

Info

Publication number
BE416678A
BE416678A BE416678DA BE416678A BE 416678 A BE416678 A BE 416678A BE 416678D A BE416678D A BE 416678DA BE 416678 A BE416678 A BE 416678A
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 BE416678A publication Critical patent/BE416678A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
BE416678D 1936-07-22 BE416678A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR47525T 1936-07-22

Publications (1)

Publication Number Publication Date
BE416678A true BE416678A (enrdf_load_html_response)

Family

ID=8683000

Family Applications (1)

Application Number Title Priority Date Filing Date
BE416678D BE416678A (enrdf_load_html_response) 1936-07-22

Country Status (2)

Country Link
BE (1) BE416678A (enrdf_load_html_response)
FR (2) FR793466A (enrdf_load_html_response)

Also Published As

Publication number Publication date
FR47525E (fr) 1937-05-24
FR793466A (fr) 1936-01-25

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