GB399565A - Coin collecting and refunding arrangement for telephone systems - Google Patents

Coin collecting and refunding arrangement for telephone systems

Info

Publication number
GB399565A
GB399565A GB10466/32A GB1046632A GB399565A GB 399565 A GB399565 A GB 399565A GB 10466/32 A GB10466/32 A GB 10466/32A GB 1046632 A GB1046632 A GB 1046632A GB 399565 A GB399565 A GB 399565A
Authority
GB
United Kingdom
Prior art keywords
coin
relay
call
refunding
refund
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
GB10466/32A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB399565A publication Critical patent/GB399565A/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)
  • Prepayment Telephone Systems (AREA)
GB10466/32A 1931-04-14 1932-04-12 Coin collecting and refunding arrangement for telephone systems Expired GB399565A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE399565X 1931-04-14

Publications (1)

Publication Number Publication Date
GB399565A true GB399565A (en) 1933-10-12

Family

ID=20309411

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10466/32A Expired GB399565A (en) 1931-04-14 1932-04-12 Coin collecting and refunding arrangement for telephone systems

Country Status (3)

Country Link
BE (1) BE387820A (OSRAM)
FR (1) FR735136A (OSRAM)
GB (1) GB399565A (OSRAM)

Also Published As

Publication number Publication date
FR735136A (fr) 1932-11-03
BE387820A (OSRAM)

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