CH195492A - Auxiliary device for automatic telephone device call disc. - Google Patents

Auxiliary device for automatic telephone device call disc.

Info

Publication number
CH195492A
CH195492A CH195492DA CH195492A CH 195492 A CH195492 A CH 195492A CH 195492D A CH195492D A CH 195492DA CH 195492 A CH195492 A CH 195492A
Authority
CH
Switzerland
Prior art keywords
automatic telephone
auxiliary device
disc
telephone device
call disc
Prior art date
Application number
Other languages
French (fr)
Inventor
Wickersham Schubert Sami
Original Assignee
Wickersham Schubert Sami
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 Wickersham Schubert Sami filed Critical Wickersham Schubert Sami
Publication of CH195492A publication Critical patent/CH195492A/en

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)
CH195492D 1936-02-05 1936-08-27 Auxiliary device for automatic telephone device call disc. CH195492A (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
CH195492A true CH195492A (en) 1938-01-31

Family

ID=6540525

Family Applications (1)

Application Number Title Priority Date Filing Date
CH195492D CH195492A (en) 1936-02-05 1936-08-27 Auxiliary device for automatic telephone device call disc.

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
GB466338A (en) 1937-05-26
BE419169A (en)
DE658604C (en) 1938-04-11
BE417207A (en)
US2097384A (en) 1937-10-26
FR811200A (en) 1937-04-08
NL46870C (en)
FR816063A (en) 1937-07-29
GB480248A (en) 1938-02-14

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