NL278487A - - Google Patents

Info

Publication number
NL278487A
NL278487A NL278487DA NL278487A NL 278487 A NL278487 A NL 278487A NL 278487D A NL278487D A NL 278487DA NL 278487 A NL278487 A NL 278487A
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 NL278487A publication Critical patent/NL278487A/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
    • H04M17/023—Circuit arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Prepayment Telephone Systems (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
NL278487D 1962-05-16 NL278487A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL278487 1962-05-16

Publications (1)

Publication Number Publication Date
NL278487A true NL278487A (xx)

Family

ID=19753828

Family Applications (1)

Application Number Title Priority Date Filing Date
NL278487D NL278487A (xx) 1962-05-16

Country Status (3)

Country Link
US (1) US3296375A (xx)
BE (1) BE632404A (xx)
NL (1) NL278487A (xx)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1349373A (en) * 1916-12-15 1920-08-10 Automatic Electric Co Measured-service telephone system
US2066391A (en) * 1930-12-22 1937-01-05 Associated Telephone Utilities Pay telephone station
US2583783A (en) * 1948-02-03 1952-01-29 Automatic Elect Lab Pay station circuits for automatic telephone systems

Also Published As

Publication number Publication date
US3296375A (en) 1967-01-03
BE632404A (xx)

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