GB344633A - Improvements in or relating to telephone pay stations - Google Patents

Improvements in or relating to telephone pay stations

Info

Publication number
GB344633A
GB344633A GB533730A GB533730A GB344633A GB 344633 A GB344633 A GB 344633A GB 533730 A GB533730 A GB 533730A GB 533730 A GB533730 A GB 533730A GB 344633 A GB344633 A GB 344633A
Authority
GB
United Kingdom
Prior art keywords
coin
operated
magnet
receiver
projection
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
GB533730A
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.)
Telephon Apparat Fabrik E Zwietusch and Co
Original Assignee
Telephon Apparat Fabrik E Zwietusch and Co
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 Telephon Apparat Fabrik E Zwietusch and Co filed Critical Telephon Apparat Fabrik E Zwietusch and Co
Publication of GB344633A publication Critical patent/GB344633A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Prepayment Telephone Systems (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
GB533730A 1929-11-14 1930-02-17 Improvements in or relating to telephone pay stations Expired GB344633A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET40511D DE581835C (de) 1929-11-14 1929-11-14 Schaltungsanordnung fuer Muenzfernsprecher

Publications (1)

Publication Number Publication Date
GB344633A true GB344633A (en) 1931-03-12

Family

ID=7560777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB533730A Expired GB344633A (en) 1929-11-14 1930-02-17 Improvements in or relating to telephone pay stations

Country Status (6)

Country Link
BE (1) BE367704A (enrdf_load_stackoverflow)
CH (1) CH145794A (enrdf_load_stackoverflow)
DE (1) DE581835C (enrdf_load_stackoverflow)
FR (1) FR688476A (enrdf_load_stackoverflow)
GB (1) GB344633A (enrdf_load_stackoverflow)
NL (1) NL29441C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR688476A (fr) 1930-08-23
DE581835C (de) 1933-08-03
NL29441C (enrdf_load_stackoverflow)
BE367704A (enrdf_load_stackoverflow)
CH145794A (de) 1931-03-15

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