BE417207A - - Google Patents

Info

Publication number
BE417207A
BE417207A BE417207DA BE417207A BE 417207 A BE417207 A BE 417207A BE 417207D A BE417207D A BE 417207DA BE 417207 A BE417207 A BE 417207A
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 BE417207A publication Critical patent/BE417207A/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M17/00Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/23Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
    • 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)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)
  • Push-Button Switches (AREA)
BE417207D 1936-02-05 BE417207A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET46382D DE658604C (de) 1936-02-05 1936-02-05 Nummernschalter mit Einrichtung zur Sperrung bestimmter Anrufnummern

Publications (1)

Publication Number Publication Date
BE417207A true BE417207A (fr)

Family

ID=6540525

Family Applications (2)

Application Number Title Priority Date Filing Date
BE417207D BE417207A (fr) 1936-02-05
BE419169D BE419169A (fr) 1936-02-05

Family Applications After (1)

Application Number Title Priority Date Filing Date
BE419169D BE419169A (fr) 1936-02-05

Country Status (7)

Country Link
US (1) US2097384A (fr)
BE (2) BE419169A (fr)
CH (1) CH195492A (fr)
DE (1) DE658604C (fr)
FR (2) FR811200A (fr)
GB (2) GB480248A (fr)
NL (1) NL46870C (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525909A (en) * 1947-11-05 1950-10-17 Joyce Maurice Automatic telephone dialing instrument
US2656417A (en) * 1948-11-30 1953-10-20 James Kilburg Corp Automatic telephone dialer
US2708221A (en) * 1950-10-27 1955-05-10 Joyce Maurice Automatic telephone dialing instrument
US2970481A (en) * 1956-04-05 1961-02-07 Admiral Corp Tuner control

Also Published As

Publication number Publication date
FR811200A (fr) 1937-04-08
FR816063A (fr) 1937-07-29
GB466338A (en) 1937-05-26
US2097384A (en) 1937-10-26
CH195492A (fr) 1938-01-31
NL46870C (fr)
DE658604C (de) 1938-04-11
GB480248A (en) 1938-02-14
BE419169A (fr)

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