BE509959A - - Google Patents

Info

Publication number
BE509959A
BE509959A BE509959DA BE509959A BE 509959 A BE509959 A BE 509959A BE 509959D A BE509959D A BE 509959DA BE 509959 A BE509959 A BE 509959A
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 BE509959A publication Critical patent/BE509959A/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/04Recording calls, or communications in printed, perforated or other permanent form

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
BE509959D 1951-03-28 BE509959A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US712508XA 1951-03-28 1951-03-28

Publications (1)

Publication Number Publication Date
BE509959A true BE509959A (en:Method)

Family

ID=22100189

Family Applications (1)

Application Number Title Priority Date Filing Date
BE509959D BE509959A (en:Method) 1951-03-28

Country Status (2)

Country Link
BE (1) BE509959A (en:Method)
GB (1) GB712508A (en:Method)

Also Published As

Publication number Publication date
GB712508A (en) 1954-07-28

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