GB480248A - An improved device for use with the dialling plates of automatic telephone instruments - Google Patents

An improved device for use with the dialling plates of automatic telephone instruments

Info

Publication number
GB480248A
GB480248A GB19477/36A GB1947736A GB480248A GB 480248 A GB480248 A GB 480248A GB 19477/36 A GB19477/36 A GB 19477/36A GB 1947736 A GB1947736 A GB 1947736A GB 480248 A GB480248 A GB 480248A
Authority
GB
United Kingdom
Prior art keywords
handle
plunger
cap
spring
rotary arm
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
GB19477/36A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB480248A publication Critical patent/GB480248A/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)
GB19477/36A 1936-02-05 1936-07-13 An improved device for use with the dialling plates of automatic telephone instruments Expired GB480248A (en)

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
GB480248A true GB480248A (en) 1938-02-14

Family

ID=6540525

Family Applications (2)

Application Number Title Priority Date Filing Date
GB19477/36A Expired GB480248A (en) 1936-02-05 1936-07-13 An improved device for use with the dialling plates of automatic telephone instruments
GB35761/36A Expired GB466338A (en) 1936-02-05 1936-12-30 Dial switch for use in telephone or like systems adapted to render particular call numbers inoperative

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB35761/36A Expired GB466338A (en) 1936-02-05 1936-12-30 Dial switch for use in telephone or like systems adapted to render particular call numbers inoperative

Country Status (7)

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

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 (pl)
BE419169A (pl)
CH195492A (fr) 1938-01-31
BE417207A (pl)
FR816063A (fr) 1937-07-29
FR811200A (fr) 1937-04-08
DE658604C (de) 1938-04-11
GB466338A (en) 1937-05-26
US2097384A (en) 1937-10-26

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