FR2184163A5 - - Google Patents

Info

Publication number
FR2184163A5
FR2184163A5 FR7216549A FR7216549A FR2184163A5 FR 2184163 A5 FR2184163 A5 FR 2184163A5 FR 7216549 A FR7216549 A FR 7216549A FR 7216549 A FR7216549 A FR 7216549A FR 2184163 A5 FR2184163 A5 FR 2184163A5
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7216549A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DUQUESNE JEAN FR
Original Assignee
DUQUESNE JEAN FR
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 by DUQUESNE JEAN FR filed Critical DUQUESNE JEAN FR
Priority to FR7216549A priority Critical patent/FR2184163A5/fr
Application granted granted Critical
Publication of FR2184163A5 publication Critical patent/FR2184163A5/fr
Expired legal-status Critical Current

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)
FR7216549A 1972-05-09 1972-05-09 Expired FR2184163A5 (2)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7216549A FR2184163A5 (2) 1972-05-09 1972-05-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7216549A FR2184163A5 (2) 1972-05-09 1972-05-09

Publications (1)

Publication Number Publication Date
FR2184163A5 true FR2184163A5 (2) 1973-12-21

Family

ID=9098216

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7216549A Expired FR2184163A5 (2) 1972-05-09 1972-05-09

Country Status (1)

Country Link
FR (1) FR2184163A5 (2)

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Legal Events

Date Code Title Description
ST Notification of lapse