FR811200A - Advanced device for use with call dials of automatic telephone sets - Google Patents

Advanced device for use with call dials of automatic telephone sets

Info

Publication number
FR811200A
FR811200A FR811200DA FR811200A FR 811200 A FR811200 A FR 811200A FR 811200D A FR811200D A FR 811200DA FR 811200 A FR811200 A FR 811200A
Authority
FR
France
Prior art keywords
telephone sets
automatic telephone
advanced device
call dials
dials
Prior art date
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
Other languages
French (fr)
Inventor
Sami Wickersham Schubert
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 filed Critical
Application granted granted Critical
Publication of FR811200A publication Critical patent/FR811200A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
    • 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)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)
  • Push-Button Switches (AREA)
FR811200D 1936-02-05 1936-08-26 Advanced device for use with call dials of automatic telephone sets Expired FR811200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET46382D DE658604C (en) 1936-02-05 1936-02-05 Number switch with facility to block certain call numbers

Publications (1)

Publication Number Publication Date
FR811200A true FR811200A (en) 1937-04-08

Family

ID=6540525

Family Applications (2)

Application Number Title Priority Date Filing Date
FR811200D Expired FR811200A (en) 1936-02-05 1936-08-26 Advanced device for use with call dials of automatic telephone sets
FR816063D Expired FR816063A (en) 1936-02-05 1937-01-07 Call dial with blocking of certain numbers

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR816063D Expired FR816063A (en) 1936-02-05 1937-01-07 Call dial with blocking of certain numbers

Country Status (7)

Country Link
US (1) US2097384A (en)
BE (2) BE417207A (en)
CH (1) CH195492A (en)
DE (1) DE658604C (en)
FR (2) FR811200A (en)
GB (2) GB480248A (en)
NL (1) NL46870C (en)

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
NL46870C (en)
BE419169A (en)
GB480248A (en) 1938-02-14
CH195492A (en) 1938-01-31
BE417207A (en)
FR816063A (en) 1937-07-29
DE658604C (en) 1938-04-11
GB466338A (en) 1937-05-26
US2097384A (en) 1937-10-26

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