NL46394C - - Google Patents

Info

Publication number
NL46394C
NL46394C NL46394DA NL46394C NL 46394 C NL46394 C NL 46394C NL 46394D A NL46394D A NL 46394DA NL 46394 C NL46394 C NL 46394C
Authority
NL
Netherlands
Application number
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.)
Publication of NL46394C publication Critical patent/NL46394C/xx

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)
NL46394D 1936-03-14 NL46394C (xx)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
NL46394C true NL46394C (xx)

Family

ID=6541197

Family Applications (1)

Application Number Title Priority Date Filing Date
NL46394D NL46394C (xx) 1936-03-14

Country Status (3)

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

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
US2168864A (en) 1939-08-08
GB470891A (en) 1937-08-24

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