FI751323A7 - - Google Patents

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Publication number
FI751323A7
FI751323A7 FI751323A FI751323A FI751323A7 FI 751323 A7 FI751323 A7 FI 751323A7 FI 751323 A FI751323 A FI 751323A FI 751323 A FI751323 A FI 751323A FI 751323 A7 FI751323 A7 FI 751323A7
Authority
FI
Finland
Prior art keywords
counter
telephone
call
case
opening
Prior art date
Application number
FI751323A
Other languages
English (en)
Finnish (fi)
Inventor
Wolfgang Klein
Original Assignee
Deutsche Telephonwerk Kabel
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 Deutsche Telephonwerk Kabel filed Critical Deutsche Telephonwerk Kabel
Publication of FI751323A7 publication Critical patent/FI751323A7/fi

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
    • H04M17/026—Constructional features

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Meter Arrangements (AREA)
  • Telephone Set Structure (AREA)
FI751323A 1974-07-19 1975-05-05 FI751323A7 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7425076 1974-07-19

Publications (1)

Publication Number Publication Date
FI751323A7 true FI751323A7 (enrdf_load_stackoverflow) 1976-01-20

Family

ID=6645885

Family Applications (1)

Application Number Title Priority Date Filing Date
FI751323A FI751323A7 (enrdf_load_stackoverflow) 1974-07-19 1975-05-05

Country Status (3)

Country Link
FI (1) FI751323A7 (enrdf_load_stackoverflow)
FR (1) FR2279279A1 (enrdf_load_stackoverflow)
NO (1) NO751482L (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR2279279A1 (fr) 1976-02-13
NO751482L (enrdf_load_stackoverflow) 1976-01-20
FR2279279B3 (enrdf_load_stackoverflow) 1977-09-16

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: DEUTSCHE TELEPHONWERKE UND KABELINDUSTRI