GB470891A - Improvements in or relating to telephone paystations - Google Patents

Improvements in or relating to telephone paystations

Info

Publication number
GB470891A
GB470891A GB29450/36A GB2945036A GB470891A GB 470891 A GB470891 A GB 470891A GB 29450/36 A GB29450/36 A GB 29450/36A GB 2945036 A GB2945036 A GB 2945036A GB 470891 A GB470891 A GB 470891A
Authority
GB
United Kingdom
Prior art keywords
contacts
coin
pin
bar
magnet
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
GB29450/36A
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.)
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 GB470891A publication Critical patent/GB470891A/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)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
GB29450/36A 1936-03-14 1936-10-29 Improvements in or relating to telephone paystations Expired GB470891A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE470891X 1936-03-14

Publications (1)

Publication Number Publication Date
GB470891A true GB470891A (en) 1937-08-24

Family

ID=6541197

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29450/36A Expired GB470891A (en) 1936-03-14 1936-10-29 Improvements in or relating to telephone paystations

Country Status (3)

Country Link
US (1) US2168864A (instruction)
GB (1) GB470891A (instruction)
NL (1) NL46394C (instruction)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897271A (en) * 1950-01-28 1959-07-28 Siemens Ag Coin return in telephone pay stations
US3409739A (en) * 1965-03-09 1968-11-05 Bell Telephone Labor Inc Automatic coin return for telephone paystations
GB2432993A (en) * 2005-12-01 2007-06-06 Marconi Comm Ltd Combating fraud in telecommunication systems

Also Published As

Publication number Publication date
NL46394C (instruction)
US2168864A (en) 1939-08-08

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