AU473186B2 - Improvements in or relating to coin operated telephone apparatus and electric circuit arrangements therefor - Google Patents

Improvements in or relating to coin operated telephone apparatus and electric circuit arrangements therefor

Info

Publication number
AU473186B2
AU473186B2 AU52246/73A AU5224673A AU473186B2 AU 473186 B2 AU473186 B2 AU 473186B2 AU 52246/73 A AU52246/73 A AU 52246/73A AU 5224673 A AU5224673 A AU 5224673A AU 473186 B2 AU473186 B2 AU 473186B2
Authority
AU
Australia
Prior art keywords
relating
electric circuit
telephone apparatus
circuit arrangements
coin operated
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
AU52246/73A
Other versions
AU5224673A (en
Inventor
THOMAS GRAHAM and PERON GOPAILLCN BRIAN
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.)
Associated Automation Ltd
Original Assignee
Associated Automation Ltd
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 Associated Automation Ltd filed Critical Associated Automation Ltd
Publication of AU5224673A publication Critical patent/AU5224673A/en
Application granted granted Critical
Publication of AU473186B2 publication Critical patent/AU473186B2/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
    • H04M17/023—Circuit arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Meter Arrangements (AREA)
  • Prepayment Telephone Systems (AREA)
AU52246/73A 1972-02-17 1973-02-16 Improvements in or relating to coin operated telephone apparatus and electric circuit arrangements therefor Expired AU473186B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB730672A GB1419084A (en) 1972-02-17 1972-02-17 Coin operated telephone apparatus and electric circuit arrangements therefor
GBGB7306/72 1972-02-17

Publications (2)

Publication Number Publication Date
AU5224673A AU5224673A (en) 1974-08-22
AU473186B2 true AU473186B2 (en) 1976-06-17

Family

ID=9830611

Family Applications (1)

Application Number Title Priority Date Filing Date
AU52246/73A Expired AU473186B2 (en) 1972-02-17 1973-02-16 Improvements in or relating to coin operated telephone apparatus and electric circuit arrangements therefor

Country Status (2)

Country Link
AU (1) AU473186B2 (en)
GB (1) GB1419084A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE30973E (en) 1977-07-27 1982-06-15 Bell Telephone Laboratories, Incorporated Telephone station coin memory and control system

Also Published As

Publication number Publication date
GB1419084A (en) 1975-12-24
AU5224673A (en) 1974-08-22

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