BE378410A - - Google Patents

Info

Publication number
BE378410A
BE378410A BE378410DA BE378410A BE 378410 A BE378410 A BE 378410A BE 378410D A BE378410D A BE 378410DA BE 378410 A BE378410 A BE 378410A
Authority
BE
Belgium
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 BE378410A publication Critical patent/BE378410A/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)
  • Interface Circuits In Exchanges (AREA)
BE378410D 1930-03-21 BE378410A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE355181X 1930-03-21

Publications (1)

Publication Number Publication Date
BE378410A true BE378410A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Family

ID=20308758

Family Applications (1)

Application Number Title Priority Date Filing Date
BE378410D BE378410A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) 1930-03-21

Country Status (6)

Country Link
US (1) US1855087A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
BE (1) BE378410A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
DE (1) DE583068C (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
FR (1) FR713494A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
GB (1) GB355181A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
NL (1) NL34614C (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Also Published As

Publication number Publication date
FR713494A (fr) 1931-10-28
NL34614C (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
DE583068C (de) 1933-08-28
GB355181A (en) 1931-08-20
US1855087A (en) 1932-04-19

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